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2 days ago · S. manzonii. Otodus megalodon ( / ˈmɛɡələdɒn / MEG-əl-ə-don; meaning "big tooth"), commonly known as megalodon, is an extinct species of giant mackerel shark that lived approximately 23 to 3.6 million years ago (Mya), from the Early Miocene to the Pliocene epochs.
- †O. megalodon
- †Otodus
4 days ago · In 2021, a literature review of the current evidence infers that domestication of the dog began in Siberia 26,000-19,700 years ago by Ancient North Eurasians, then later dispersed eastwards into the Americas and westwards across Eurasia.
4 days ago · This small mammal was about 4 metres long (13.1 feet) and had 14 teeth—more like a typical dolphin. This implies that the ancestors of the present-day killer whale diverged from other cetaceans during the Miocene Epoch (23 million to 5.3 million years ago); most dolphin evolution took place near the beginning of this epoch.
- The Editors of Encyclopaedia Britannica
5 days ago · Like all marine mammals, sperm whales are very social animals, with their calls an integral part of this. The new study has provided a fuller understanding of how these whales communicate.
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4 days ago · Etymology. Until the 16th century, sharks were known to mariners as "sea dogs". This is still evidential in several species termed "dogfish," or the porbeagle.The etymology of the word shark is uncertain, the most likely etymology states that the original sense of the word was that of "predator, one who preys on others" from the Dutch schurk, meaning 'villain, scoundrel' (cf. card shark, loan ...
5 days ago · Sperm whales are highly social creatures that roam the world’s oceans together, diving deep in search of giant squid, their favorite food. As they swim and hunt, these massive marine mammals ...
3 days ago · Placental mammals, the largest group of mammals, nurture their young in the womb through a specialized placenta. This group encompasses diverse species, including humans, dogs, cats, elephants, and whales. Placental mammals have evolved various adaptations and display a wide range of behaviors and anatomical features.
