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The pterodactyl derives from the word Pterosaurs, which means “winged lizard”. Pterodactyl means in fact “winged finger”. When you hear about them, you think about some huge, majestic creature, gliding and searching for its next victim. Don’t think that way any more! A fossil suggests that about 120 million years ago, a pterodactyl so small […]
Birds evolved from lizards, (nearly) all scientists agree about that, but strangely enough there is still a debate around when the first bird showed up in the Mesozoic scene. While paleontologists who have studied fossils think that birds evolved from dinosaurs about 60 million to 65 million years ago, right when the dinosaurs went extinct, […]
Butterflies have fascinated people for as long as we can remember; the beauty of their wings is known to just about everybody and well just about everybody loves them. But behind their naive beauty lies a mistery which has baffled scientists as they couldn’t understand how these colours are created. Marco Giraldo has been examining […]
The tree of life is a metaphor scientists use to describe all life on Earth in an evolutionary context. Charles Darwin talks about envisioning evolution and ecosystems as a “tangled bank” in The Origin of Species; however, the book’s sole illustration is of a branched diagram that is very tree-like. This “design” has been used […]
About 250 million years ago, at the end of the Permian, and event caused a mass extinction which killed over 90 percent of the life on Earth. Ecosystems were destroyed and organisms were left to recover; it was the closest life came to being wiped out ever. The full recovery of those ecosystems took at […]