OK Here's the puzzle.
The great extinctions wiped out the dinosaurs. But a few of their shapes survived. Tricerotops came back as a rino although a modern rino is a closer genetic relative to a dog than a triceotops and a triceratops closest living relative is a bird. Ankylasourous made a come back when turtles evolved to tortises etc etc.
But the raptors. The top predators.
In the age of the dinosaurs ALL or the top predators but the crocs ran on two legs. Even in the first age after the cretaceous, (eocene I think) the top predators were flightless birds who hunted on two legs.
But, in the modern age ALL or the top predators hunt on four legs. Why? What long term environmental change occurred.??
The second question, on the same issue, concerns human evoloution. Neandertal man was an ice age hunter. When modern homo sapiens appeared the ice age was waning and man was starting the first farms.
BUT! Homo sapiens, with his longe r arms and legs and greater speed would have been a better hunter and the strong stocky neandertals would have been better farmers. Why did these humans, so much morre suited to farming, go extinct, right when the first farms were being established.
Wierd!!!
