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Basilosaurus (meaning "king lizard") is a genus of large, predatory, prehistoric archaeocete whale from the late Eocene, approximately 41.3 to 33.9 million years ago (mya). ). First described in 1834, it was the first archaeocete and prehistoric whale known to scienc
Megalodon were contemporaneous with whale-eating toothed whales (particularly macroraptorial sperm whales and squalodontidae), which were also probably among the era's apex predators, and provided competition. [93] Some attained gigantic sizes, such as Livyatan, estimated between 13.5 to 17.5 meters (44 to 57 ft).
Pygmy blue whale males average 83.5 tonnes (184,000 lb) to 99 tonnes (218,000 lb). [53] The weight of the heart of a stranded North Atlantic blue whale was 180 kg (400 lb), the largest known in any animal. [54] The record-holder blue whale was recorded at 173 tonnes (190 short tons), [55] with estimates of up to 199 tonnes (220 short tons). [56]
Scientists don't know for sure whether the megalodon ever lived in Mississippi even if some of its teeth were found in the Magnolia State. National Megalodon Day is June 15. Here are 5 things to ...
At birth, a baby blue whale is already 25 ft long (the size of an adult killer whale) and can drink up to 150 gallons (568 liters) of milk a day and gain as much as 200 lbs (90 kg) per day in its ...
Some balaenopterids perhaps rivaled the blue whale in terms of size, [116] though other studies disagree that any baleen whale grew that large in the Miocene. [117] The true largest macroraptorial sperm whale is none other than the Livyatan, with an estimated length of 44–57 ft (13.5–17.5 m) and an estimated weight of 62.8 short tons (57 ...
A gray whale does a bubble blast while foraging for food as seen via drone. Drone video of gray whales captured over seven years off Oregon has revealed new details about how the giant marine ...
Rorquals (/ ˈ r ɔːr k w əl z /) are the largest group of baleen whales, comprising the family Balaenopteridae, which contains nine extant species in two genera.They include the largest known animal that has ever lived, the blue whale, which can reach 180 tonnes (200 short tons), and the fin whale, which reaches 120 tonnes (130 short tons); even the smallest of the group, the northern minke ...