Answer: No, the fossil record is not complete because with further fossil discoveries, and more study, it may continue to tell paleontologists how modern whales came to behave the way they do.
Is the fossil record complete for whales?
“People look at the fossil record and think the early history of many animals is filled with giants, but not for whales. It’s only in recent geological times that whales have achieved really large sizes,” Fordyce says.
What did Fossils teach us about whales?
Fossils provide lots of evidence about the ancestors of whales. For example it shows that a land mammal lived between 50 million and 70 million years ago. Scientists think whales evolved from these ocean-dwelling mammals. They can tell this and more cell from a fossil.
How does the fossil record help explain the evolutionary history of whales?
The hypothesis that Ambulocetus lived an aquatic life is also supported by evidence from stratigraphy — Ambulocetus’s fossils were recovered from sediments that probably comprised an ancient estuary — and from the isotopes of oxygen in its bones. … Whales that evolved after Ambulocetus (Kutchicetus, etc.)
What is being done to protect humpback whales?
Conservation & Management
Reducing the risk of entanglement in fishing gear. Developing methods to reduce vessel strikes. Responding to dead, injured, or entangled humpback whales. Educating the whale watching/tourism industry and vessel operators on responsible viewing of humpback whales.
Is the fossil record complete for humans?
All but Homo sapiens, the species that comprises modern humans, are extinct and have been reconstructed from fossil evidence. Encyclopædia Britannica, Inc.
Which land animal is the closest cousin to Dolphins?
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. The origin of dolphins and the origin of whales in general is the subject of much debate.
Do humans and humpback whales share a close evolutionary relationship?
This can be explained by the fact that whales share a more recent common ancestry with humans (Figure 4) than they do with sharks. We predict that their closer relationship means that they share more features in common, and the evidence supports this prediction.
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.
What is an example of a transitional fossil?
Specific examples of class-level transitions are: tetrapods and fish, birds and dinosaurs, and mammals and “mammal-like reptiles”. The term “missing link” has been used extensively in popular writings on human evolution to refer to a perceived gap in the hominid evolutionary record.
What are the similarities and differences between the whale fossils?
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.
Why is whale a mammal?
Whales are mammals because they give birth to live young, they have fur (although it is very sparse on their body), they have lungs and breath air and they provide milk for their young. Answer 3: … Dolphins and other whales are all mammals called cetaceans.
Why is whale evolution important?
Another indication of whales’ evolutionary heritage can be seen in the way they move. Whale Evolution: … The new bones, dubbed Pakicetus, proved to have key features that were transitional between terrestrial mammals and the earliest true whales. One of the most interesting was the ear region of the skull.
Can whales eat humans?
Killer whales (or orcas) are large, powerful apex predators. In the wild, there have been no fatal recorded attacks on humans. In captivity, there have been several non-fatal and fatal attacks on humans since the 1970s.
Why is it called a humpback whale?
In addition to sparing our tongues from a tricky game of twister, these baleen whales were given their nickname “humpback” from the distinctive hump on their back, instead of a typical dorsal fin seen on other large whales, as well as from the way their back curves when diving down into the water from the surface.
Is whale killing illegal?
All of the great whales are listed as endangered species under the ESA. As a result, it is illegal to kill, hunt, collect, injure or harass them, or to destruct their habitat in any way. It is also illegal to buy or sell any whales.