Answer: The whale fossils are different because they first had feet in which they had to stand with , with pig like feet, and they had long heads and sharp teeth. They are the same because they are similar because they all the same curved back.
How does fossil evidence determine the relationships of whale ancestors and their descendants?
Fossil evidence shows that a land mammal the lived between 50 million and 70 million years ago. It is thought that whales evolved from these ocean-dwelling mammals. Whales Descended From Tiny Deer-like Ancestors. Scientists found that whales are mammals whose ancestors walked on land.
What fossil organism is in whale evolution?
The evolution of whales was a gradual process in which terrestrial animals have become more and more adapted to an aquatic environment. Ambulocetus was perhaps the first whale ancestor that live mostly in water. Evidence suggesting this are the sediments where its fossils where recovered.
How does a whale become a fossil?
Fossils are preserved remains of plants and animals that lived thousands to millions of years ago. Fossil remains indicate that whales evolved from hoofed land animals.
How do fossils of whales provide evidence that whales have evolved over millions of years?
15. How do the fossils of whales provide evidence that whales have evolved over millions of years. Fossils of the stages of whale evolution have been discovered that clearly indicate their sequence of change from land dwelling mammals.
What was the first whale?
Odd as it may seem, a four-footed land mammal named Pakicetus, living some 50 million years ago in what we know as Pakistan today, bears the title of “first whale.”
Which fossil organism in whale evolution do you think was the first to live mostly in water?
During the research, Ambulocetus was the fossil organism in whale evolution that I think was the first to live mostly in water and over time they developed feet arms and hands used to swim.
What animal is the closest cousin to Dolphins?
Origin of Dolphins
It is widely accepted in scientific circles that both the baleen and toothed whales shared a common ancestor, now extinct. The closest living relatives of dolphins today are the even toed ungulates such as camels and cows with the humble hippopotamus being the closest living relative.
Do humans and humpback whales share a common evolutionary lineage?
Yes because when it comes to whales and humans we have a lot in common. They have different behaviors and languages within their own culture as humans do.
What useless parts did basilosaurus still have?
Yet Basilosaurus still retained small, weak hind legs — baggage from its evolutionary past — even though it could not walk on land. None of these animals is necessarily a direct ancestor of the whales we know today; they may be side branches of the family tree.
Where was the whale fossil found?
The fossil was found in the desert of Wadi Al-Hitan, a place so rich in cetacean fossils that it’s known as Whale Valley.
Where are whale fossils usually found?
So far, most whale fossils have been found in the Northern Hemisphere. But with the emergence of M. selenensis and a variety of older fossils from the Southern Hemisphere, researchers are turning their eyes to the south.
Is the blue whale prehistoric?
The marine giant lived about 1.5 million years ago, suggesting that blue whales started bulking up much earlier than thought. The blue whale is not only the largest animal alive today, it is the largest one that has ever lived. … An illustration shows how a modern human diver would have measured up to the ancient whale.
What animal evolved into a whale?
Meet Pakicetus, a goat-sized, four-legged creature that scientists recognise as one of the first cetaceans (the group of marine animals that includes dolphins and whales). How Pakicetus’ descendants evolved into whales is one of the most intriguing evolutionary journeys known to science.
Did wolves evolve from whales?
Scientists say the creatures were a “missing link” between primitive hoofed mammals and the whale family. The wolf-sized animals ran about on land 50 million years ago. … They suggest that early whales used webbed hind legs to swim, and probably lived both on land and in the water about 47 million years ago.
What was the basilosaurus habitat?
The shallow sea that covered southern Alabama, precursor to today’s Gulf of Mexico, teemed with marine life. Basilosaurus was a predator and likely fed on larger fish and other vertebrates in that environment.