Scientists at the Smithsonian Tropical Research Institute (STRI), based in Panama, have discovered monkeys' fossils that lived in North America 21 million years ago.
Scientists have revealed the life of the world's oldest primates, living 66 million years ago.
Thankfully this was not the snake alive. The prototype of the giant reptile is on display in New York to spread science to everyone.
It is a warning by scientists from the new study: warming temperatures can shrink mammalian size and produce giant reptiles.