BOTTLENOSE DOLPHINS // Tursiops truncatus
Kingdom: Animalia (animals)
Phylum: Chordata (veterbrates)
Class: Mammalia (mammals)
Order: Cetacea (whales and dolphins)
Suborder: Odontoceti (toothed whales)
Family: Delphinidae
Genus: Tursiops
Species: truncatus
Bottlenose Dolphin is well known as a member of the family Delphinidae. It is small marine mammals that have long beak, sickle-shaped dorsal fin and sharp teeth both in upper and lower jaws. These kinds of dolphins have one blowhole. They live in a small group called pods. A bottlenose dolphin grows about 12 feet and weighing more than 1.400 pounds. Their primary food is mostly fish and squid. Dolphins are often caught or trapped in people’s fishing nets. Bottlenose Dolphins inhabit warm seas and some temperate seas worldwide
Although bottlenose dolphins are a very fast swimmer, they need to breath every 2 minutes. But they can hold their breath for several minutes. They breathe air at the surface of the water through single blowhole. This type of dolphins can dive more than 1.000 feet and can jump up to 20 feet out of the water. Tiger shark, dusky shark, great white shark and bull shark prey on the bottlenose dolphins. Those types of large shark are the predators. Bottlenose Dolphin can live about 25 years. Dolphins can show their curiosity towards human.
Interesting Story about Bottlenose Dolphins
A dramatic report intervention came from New Zealand in November 2004, Four lifeguards swimming about 100 m off the coast near Whangarei that were approached by great white shark. Pods of Bottlenose have a sense that the swimmers are in danger. They herded the lifeguards together and tightly surround them for forty minutes, prevent an attack from the shark as they returned to shore.
BY: VICKY KIRKPATRICK
Phylum: Chordata (veterbrates)
Class: Mammalia (mammals)
Order: Cetacea (whales and dolphins)
Suborder: Odontoceti (toothed whales)
Family: Delphinidae
Genus: Tursiops
Species: truncatus
Bottlenose Dolphin is well known as a member of the family Delphinidae. It is small marine mammals that have long beak, sickle-shaped dorsal fin and sharp teeth both in upper and lower jaws. These kinds of dolphins have one blowhole. They live in a small group called pods. A bottlenose dolphin grows about 12 feet and weighing more than 1.400 pounds. Their primary food is mostly fish and squid. Dolphins are often caught or trapped in people’s fishing nets. Bottlenose Dolphins inhabit warm seas and some temperate seas worldwide
Although bottlenose dolphins are a very fast swimmer, they need to breath every 2 minutes. But they can hold their breath for several minutes. They breathe air at the surface of the water through single blowhole. This type of dolphins can dive more than 1.000 feet and can jump up to 20 feet out of the water. Tiger shark, dusky shark, great white shark and bull shark prey on the bottlenose dolphins. Those types of large shark are the predators. Bottlenose Dolphin can live about 25 years. Dolphins can show their curiosity towards human.
Interesting Story about Bottlenose Dolphins
A dramatic report intervention came from New Zealand in November 2004, Four lifeguards swimming about 100 m off the coast near Whangarei that were approached by great white shark. Pods of Bottlenose have a sense that the swimmers are in danger. They herded the lifeguards together and tightly surround them for forty minutes, prevent an attack from the shark as they returned to shore.
BY: VICKY KIRKPATRICK
DUGONG // Dugong dugon
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Sirenia
Family: Dugongidae
Sub-Family: Dugonginae
Genus: Dugong
Species: D. dugon
Type: Mammal
Diet: Herbivore
Average life span in the wild: 70 years
Size: 8 to 10 ft (2.4 to 3m)
Weight: 510 to 1,100 lbs (231 to 499 kg)
Dugong (Dugong dugon) is an aquatic mammal found on the coasts of the Indian Ocean from Eastern Africa to northern Australia. They are related by the manatees including the similarities in appearance and behavior, but dugong can be differentiated with the manatees by its forked tail and unique skull and teeth.
Dugong itself is a large grey mammal that spends their entire lives in the sea, and just like other modern sirenians, dugong has a fusiform body with no dorsal fins. When dugong are fully-grown, they may reach three metres long and weigh 400 kg. Dugong’s way of swimming is distinguished by moving their broad whale-like tail in an up and down motion, and by use of their two flippers.
Dugong is dependent on seagrasses. They graze on underwater grasses day and night, rooting for them with their hair on their snouts, and then chewing them with their rough lips. They can go six minutes without breathing and sometimes they breath by “standing” on their tail with their heads above water. Moreover, dugong are able to dive to a maximum depth of 39 metres (128 ft), even though they spend most of their lives no deeper than 10 metres (33 ft).
As for their breeding, female dugongs give birth underwater to a single calf at three to seven year intervals. Following close until one or two years at age, the calf stays with its mother, getting milk from her teats. Staying near with the mother makes the calf swim easier, and the calf won't leave the mother until it gets matured. Dugong also known to be an animal that gives considerable care with their young,
DUGONG NOW:
For thousand years, Dugong has been hunted for its meat and oil. Their current distribution is decreasing and many of the population are close to extinct. The IUCN listed dugong as a vulnerable species and close to extinct. This means dugong needs to be protected.
BY: Diemas Ekakarina Prihandini
Phylum: Chordata
Class: Mammalia
Order: Sirenia
Family: Dugongidae
Sub-Family: Dugonginae
Genus: Dugong
Species: D. dugon
Type: Mammal
Diet: Herbivore
Average life span in the wild: 70 years
Size: 8 to 10 ft (2.4 to 3m)
Weight: 510 to 1,100 lbs (231 to 499 kg)
Dugong (Dugong dugon) is an aquatic mammal found on the coasts of the Indian Ocean from Eastern Africa to northern Australia. They are related by the manatees including the similarities in appearance and behavior, but dugong can be differentiated with the manatees by its forked tail and unique skull and teeth.
Dugong itself is a large grey mammal that spends their entire lives in the sea, and just like other modern sirenians, dugong has a fusiform body with no dorsal fins. When dugong are fully-grown, they may reach three metres long and weigh 400 kg. Dugong’s way of swimming is distinguished by moving their broad whale-like tail in an up and down motion, and by use of their two flippers.
Dugong is dependent on seagrasses. They graze on underwater grasses day and night, rooting for them with their hair on their snouts, and then chewing them with their rough lips. They can go six minutes without breathing and sometimes they breath by “standing” on their tail with their heads above water. Moreover, dugong are able to dive to a maximum depth of 39 metres (128 ft), even though they spend most of their lives no deeper than 10 metres (33 ft).
As for their breeding, female dugongs give birth underwater to a single calf at three to seven year intervals. Following close until one or two years at age, the calf stays with its mother, getting milk from her teats. Staying near with the mother makes the calf swim easier, and the calf won't leave the mother until it gets matured. Dugong also known to be an animal that gives considerable care with their young,
DUGONG NOW:
For thousand years, Dugong has been hunted for its meat and oil. Their current distribution is decreasing and many of the population are close to extinct. The IUCN listed dugong as a vulnerable species and close to extinct. This means dugong needs to be protected.
BY: Diemas Ekakarina Prihandini
KILLER WHALE // ORCINUS ORCA
TAXONOMY
KINGDOM: Animalia
PHYLUM: Chordata
CLASS: Mammalia
ORDER: Cetacea
FAMILY: Delphinidae
GENUS: Orcinus
SPECIES: orca
Killer whale or orca is the most powerful predator in the ocean. Their speed can be up to 30 mph. They have a pattern on their body, that makes them different from another whale; they has rounded body with black color on the back and white color on the undersides and around their eyes. . Their size can be as big as a bus; the male orca can grow until 23 feet long with weight 10 tons while the average female orca can only grow until 21 feet long with weight 6 tons, the largest orca had been measured in at 32 feet long with weight 10 tons. Their teeth are 10cm long. There are 3 types of orcas: resident, transient and offshore.
Orcas always travel and live in group, called pods. Pods consist of male, female and newborn orcas. Newborn orca was conceived between 15- 17 months, and when they’re born the male don’t play a part in caring them. But they are helping the female to protect and helping them with another young sibblings. Most male orca can live until 50 – 60 years while the female orca can live until 80-90 years. There are 2 kinds of groups in orcas world, resident and transient pod. Both groups have different prey and technique in catching their prey. Resident pods prefer to eat fish while the transient pods prefer to eat marine mammals. Even though they have different technique and behavior, but they have one similarity, they haunt in a group, just like wolf pack. Orca has a unique sound that can understand by their pod members, they produce 3 different sounds: clicks, whistle, and pulsed calls. Each pod has their own sound to communicate, and only pod members that understand it. Not only for communicate, they use it to haunt their prey. This sound called echolocation. Their sound can travel trough the water and when it hits an objects it will bounce back to them giving them some information of the objects size, location, and shape.
ORCAS NOW
Orca populations are around the world, but they prefer to live in the cold areas. Sadly, there is no clear number of their population now. Studies found that one of the reasons is because pollution and other chemical contaminate them. That’s makes them more vulnerable to disease and cause reproductive difficulties. Orca also used to be haunt for their meat and oil. But now, there is a convention on endangered flora and fauna with more than 144 member countries. the agreements are: species cannot be traded commercially, species can be traded commercially only if it does not harm their survival.
BY. AISYAH PUTRI GANI
KINGDOM: Animalia
PHYLUM: Chordata
CLASS: Mammalia
ORDER: Cetacea
FAMILY: Delphinidae
GENUS: Orcinus
SPECIES: orca
Killer whale or orca is the most powerful predator in the ocean. Their speed can be up to 30 mph. They have a pattern on their body, that makes them different from another whale; they has rounded body with black color on the back and white color on the undersides and around their eyes. . Their size can be as big as a bus; the male orca can grow until 23 feet long with weight 10 tons while the average female orca can only grow until 21 feet long with weight 6 tons, the largest orca had been measured in at 32 feet long with weight 10 tons. Their teeth are 10cm long. There are 3 types of orcas: resident, transient and offshore.
Orcas always travel and live in group, called pods. Pods consist of male, female and newborn orcas. Newborn orca was conceived between 15- 17 months, and when they’re born the male don’t play a part in caring them. But they are helping the female to protect and helping them with another young sibblings. Most male orca can live until 50 – 60 years while the female orca can live until 80-90 years. There are 2 kinds of groups in orcas world, resident and transient pod. Both groups have different prey and technique in catching their prey. Resident pods prefer to eat fish while the transient pods prefer to eat marine mammals. Even though they have different technique and behavior, but they have one similarity, they haunt in a group, just like wolf pack. Orca has a unique sound that can understand by their pod members, they produce 3 different sounds: clicks, whistle, and pulsed calls. Each pod has their own sound to communicate, and only pod members that understand it. Not only for communicate, they use it to haunt their prey. This sound called echolocation. Their sound can travel trough the water and when it hits an objects it will bounce back to them giving them some information of the objects size, location, and shape.
ORCAS NOW
Orca populations are around the world, but they prefer to live in the cold areas. Sadly, there is no clear number of their population now. Studies found that one of the reasons is because pollution and other chemical contaminate them. That’s makes them more vulnerable to disease and cause reproductive difficulties. Orca also used to be haunt for their meat and oil. But now, there is a convention on endangered flora and fauna with more than 144 member countries. the agreements are: species cannot be traded commercially, species can be traded commercially only if it does not harm their survival.
BY. AISYAH PUTRI GANI
Leopard Seal // Hydrurga leptonyx
TAXONOMY
· Kingdom: animalia
· Phylum: chordata
· Class: mammalia
· Order: carnivora
· Family: phocidae
· Genus: hydrurga
· Species: leptonyx
Leopard seals (Hydrurga leptonyx) also called sea leopard, s the second largest species of the seal in Antarctic. The most leopard seals it can found in Southern Hemisphere along the coast of Antarctica and on most sub-Antarctic islands, but can also be found on the coasts of southern Australia, Tasmania, south Africa, new Zealand, lord howe island, tierra del fuego, the cook island, and the atlantic coast of south America. Shaped of the leopard seals head is looks liked reptile because the head is rounded and they don’t have ear.
Leopard seals inhabit the pack of ice and fast ice edges around Antarctic, ussualy in Antarctic peninsula. Leopard seal can’t dive very long, the best recorded of leopard seals dive is 15 minute. Because they don’t hunt in open area, they hunt from concealment so they don’t need to dive for long periods to feed. There’s no exact precisely how many leopards seals out there but from an international group of scientist, there’s 200.000 leopard seals out there. Leopard seals eat penguins, sea birds, small seals, cephalopods fish, and krill. That is what they eat in the Antarctic. Leopard seals can live until 26 years old that is the oldest leopard seal that ever lived, and the only predator that can killed leopard seals is the killer whale.
Interesting fact that leopard seals have:
· Leopard seals swim very fast, so they can jump out of the water when they chasing their food.
· Average Length of the leopard seals is 12 feet
· Leopard seals have a big front flippers like sea lion to steer and to move through the water.
· Leopard seals are potentially to attack humans.
by Fabian Erlanda Nasution
· Kingdom: animalia
· Phylum: chordata
· Class: mammalia
· Order: carnivora
· Family: phocidae
· Genus: hydrurga
· Species: leptonyx
Leopard seals (Hydrurga leptonyx) also called sea leopard, s the second largest species of the seal in Antarctic. The most leopard seals it can found in Southern Hemisphere along the coast of Antarctica and on most sub-Antarctic islands, but can also be found on the coasts of southern Australia, Tasmania, south Africa, new Zealand, lord howe island, tierra del fuego, the cook island, and the atlantic coast of south America. Shaped of the leopard seals head is looks liked reptile because the head is rounded and they don’t have ear.
Leopard seals inhabit the pack of ice and fast ice edges around Antarctic, ussualy in Antarctic peninsula. Leopard seal can’t dive very long, the best recorded of leopard seals dive is 15 minute. Because they don’t hunt in open area, they hunt from concealment so they don’t need to dive for long periods to feed. There’s no exact precisely how many leopards seals out there but from an international group of scientist, there’s 200.000 leopard seals out there. Leopard seals eat penguins, sea birds, small seals, cephalopods fish, and krill. That is what they eat in the Antarctic. Leopard seals can live until 26 years old that is the oldest leopard seal that ever lived, and the only predator that can killed leopard seals is the killer whale.
Interesting fact that leopard seals have:
· Leopard seals swim very fast, so they can jump out of the water when they chasing their food.
· Average Length of the leopard seals is 12 feet
· Leopard seals have a big front flippers like sea lion to steer and to move through the water.
· Leopard seals are potentially to attack humans.
by Fabian Erlanda Nasution