New research suggests crocodiles used to have hot blood and fast metabolisms, but gave it all up to lurk underwater waiting for prey.
- Professor Emeritus of Physiology, Adelaide University
Scientists thought giant dragonflies couldn’t survive in today’s atmosphere – but a study of dozens of insect species shows that’s not the case.
Il est très improbable qu’un animal, même un dinosaure, ait jamais atteint une taille supérieure à celle de la girafe.
Giraffes might be about as tall as a land animal can get.
Small holes in baby dinosaur bones add to the growing mass of evidence that the ancient creatures were warm-blooded and highly active.
To understand how much thinking a brain can do, look at how much blood - and therefore how much energy - it uses.
The brains of our ancestors grew larger and smarter thanks to an increase in the flow of blood to the brain
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