In 1941 Richard Owen said that the dinosaurs were almost hot blooded.
As an undergraduate I held many small jobs as an illustrator.
Also, while I was at Yale, I had a job teaching kids at the museum.
At Harvard I was in charge of the comparative anatomy labs.
I also got a chance to go to the American Museum in New York, which helped my interest.
Often extinctions in the ocean occur at the same time as those on land. Then again, the ice age extinctions lost many big animals, but not many sea faring ones.