The oldest total-group chondrichthyans, known as acanthodians or "spiny sharks", appeared during the Early Silurian, around 439 million years ago. The oldest confirmed members of Elasmobranchii sensu lato (the group containing all cartilaginous fish more closely related to modern sharks and rays than to chimaeras) appeared during the Devonian. The oldest representatives of Neos… Web25 jan. 2024 · Sharks are fish, although some people consider them mammals due to the size some of them can grow to, and some give birth to live young.. What are mammals? …
Olivia
Web1 sep. 2024 · Conclusion: A shark is not a mammal, it is a fish As we have explained, sharks are not mammals. A shark is a cartilaginous fish. The skeleton of sharks isn’t made up of bones, but cartilage. Some species of shark can give birth to their young, but the fact that they cannot suckle them disqualifies them as mammals. Is a shark a mammal or an ... Web5 uur geleden · Shafeeg and his friend Carmen Canovas Cervello, 30, had reportedly been diving at Vaavu Atoll in the Maldives when suddenly they came across a school of ten … cholith beauty
Smartest Animals In The World: 15 Most Intelligent Ranked ️
Web12 okt. 2024 · Sharks are fish, not mammals. Sharks do not produce milk and lack features found in mammals like hair and lungs. Sharks have scales, and fins, and use gills to breathe because they are fish. Mammals belong to the class Mammalia, whereas sharks are members of the class Chondrichthyes. WebWhether a shark is a mammal or fish is a query that leads to quite a lot of confusion, and a few debates as well. Most people think sharks are mammals, as they give birth to … Web431 Likes, 3 Comments - Olivia's dad (@fossilsfromeverywhere) on Instagram: "LARGEST LAND MAMMAL EVER? Paraceratherium was (arguably) the largest land mammal to have ever li..." Olivia's dad on Instagram: "LARGEST LAND MAMMAL EVER? gray white cat breeds