Post by dinosauria101 on Oct 5, 2019 18:20:13 GMT 5
Killer Whale (pod of 6) - Orcinus orca
The killer whale (Orcinus orca), commonly referred to as the orca whale or orca, and less commonly as the blackfish, is a toothed whale belonging to the oceanic dolphin family. Killer whales are found in all oceans, from the frigid Arctic and Antarctic regions to tropical seas. Killer whales as a species have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as sea lions, seals, walruses and even large whales. Killer whales are regarded as apex predators, lacking natural predators. Killer whales distinctively bear a black back, white chest and sides, and a white patch above and behind the eye. Killer whales have a heavy and robust body with a large dorsal fin up to 2 metres (6.6 ft) tall. Behind the fin, they have a dark grey "saddle patch" across the back. Antarctic killer whales may have pale grey to nearly white backs. Adult killer whales are very distinctive and are not usually confused with any other sea creature. The killer whale's teeth are very strong and covered in enamel. Its jaws are a powerful gripping apparatus, as the upper teeth fall into the gaps between the lower teeth when the mouth is closed. The front teeth are inclined slightly forward and outward, thus allowing the killer whale to withstand powerful jerking movements from its prey while the middle and back teeth hold it firmly in place. Killer whales are the largest extant members of the dolphin family. Males typically range from 6 to 8 metres (20–26 ft) long and weigh approximately 5 tons on average. Females are smaller, generally ranging from 5 to 7 metres (16–23 ft) and weighing about 3 to 4 tonnes (3.0 to 3.9 long tons; 3.3 to 4.4 short tons). The largest male killer whale on record was 9.8 metres (32 ft), weighing over 10 tonnes (9.8 long tons; 11 short tons), while the largest female was 8.5 metres (28 ft), weighing 7.5 tonnes (7.4 long tons; 8.3 short tons).
![](https://upload.wikimedia.org/wikipedia/commons/3/37/Killerwhales_jumping.jpg)
upload.wikimedia.org/wikipedia/commons/3/37/Killerwhales_jumping.jpg
Livyatan melvillei
Livyatan melvillei is an extinct species of physeteroid whale. Fossilised remains, comprising 75% of the animal's skull, and large fragments of both jaws and several teeth, were discovered in the Pisco-Ica desert in southern Peru in 2008, in Miocene rocks 12-13 million years old. The skull of Livyatan melvillei measured 3 metres long, its longest teeth were 36 cm long, and it is thought its overall length would have been in the region of 13.5-17.5 m. It was similar in size and appearance to the modern sperm whale. Unlike the sperm whale, however, which only has functional teeth in its lower jaw, Livyatan melvillei had teeth in both jaws, and is thought to have been an aggressive predator, possibly preying on baleen whales.
![](https://www.newdinosaurs.com/wp-content/uploads/2016/11/1156_leviathan-livyatan_jaime_bran.jpg)
www.newdinosaurs.com/wp-content/uploads/2016/11/1156_leviathan-livyatan_jaime_bran.jpg
Credit to Wikipedia
The killer whale (Orcinus orca), commonly referred to as the orca whale or orca, and less commonly as the blackfish, is a toothed whale belonging to the oceanic dolphin family. Killer whales are found in all oceans, from the frigid Arctic and Antarctic regions to tropical seas. Killer whales as a species have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as sea lions, seals, walruses and even large whales. Killer whales are regarded as apex predators, lacking natural predators. Killer whales distinctively bear a black back, white chest and sides, and a white patch above and behind the eye. Killer whales have a heavy and robust body with a large dorsal fin up to 2 metres (6.6 ft) tall. Behind the fin, they have a dark grey "saddle patch" across the back. Antarctic killer whales may have pale grey to nearly white backs. Adult killer whales are very distinctive and are not usually confused with any other sea creature. The killer whale's teeth are very strong and covered in enamel. Its jaws are a powerful gripping apparatus, as the upper teeth fall into the gaps between the lower teeth when the mouth is closed. The front teeth are inclined slightly forward and outward, thus allowing the killer whale to withstand powerful jerking movements from its prey while the middle and back teeth hold it firmly in place. Killer whales are the largest extant members of the dolphin family. Males typically range from 6 to 8 metres (20–26 ft) long and weigh approximately 5 tons on average. Females are smaller, generally ranging from 5 to 7 metres (16–23 ft) and weighing about 3 to 4 tonnes (3.0 to 3.9 long tons; 3.3 to 4.4 short tons). The largest male killer whale on record was 9.8 metres (32 ft), weighing over 10 tonnes (9.8 long tons; 11 short tons), while the largest female was 8.5 metres (28 ft), weighing 7.5 tonnes (7.4 long tons; 8.3 short tons).
![](https://upload.wikimedia.org/wikipedia/commons/3/37/Killerwhales_jumping.jpg)
upload.wikimedia.org/wikipedia/commons/3/37/Killerwhales_jumping.jpg
Livyatan melvillei
Livyatan melvillei is an extinct species of physeteroid whale. Fossilised remains, comprising 75% of the animal's skull, and large fragments of both jaws and several teeth, were discovered in the Pisco-Ica desert in southern Peru in 2008, in Miocene rocks 12-13 million years old. The skull of Livyatan melvillei measured 3 metres long, its longest teeth were 36 cm long, and it is thought its overall length would have been in the region of 13.5-17.5 m. It was similar in size and appearance to the modern sperm whale. Unlike the sperm whale, however, which only has functional teeth in its lower jaw, Livyatan melvillei had teeth in both jaws, and is thought to have been an aggressive predator, possibly preying on baleen whales.
![](https://www.newdinosaurs.com/wp-content/uploads/2016/11/1156_leviathan-livyatan_jaime_bran.jpg)
www.newdinosaurs.com/wp-content/uploads/2016/11/1156_leviathan-livyatan_jaime_bran.jpg
Credit to Wikipedia