There’s a conundrum in the paleontological community that’s been going on for quite some time. Did teeth evolve from outside dentine armor in ancient fish, or did the armor outside come from teeth in the mouth? Also, what’s up with most amphibians and all modern birds losing their teeth? PBS Eons’ Kallie Moore tells us the story.
Related Posts
Dogs can get dementia – but lots of walks may lower the risk
Pexels, CC BY Susan Hazel, University of Adelaide and Tracey Taylor, University of Adelaide Dogs get dementia too.…
Guava molecule synthesis offers new hope for liver cancer
Chemists at the University of Delaware report the first total synthesis of (–)-psiguadial A, a guava-derived molecule with significant potential to fight liver cancer.
Horses really can smell fear, new study claims, and it changes their behaviour
Inna photographer/Shutterstock Roberta Blake, Anglia Ruskin University Humans have long believed horses can “smell fear”. Nervous riders are…
The brilliant and bizarre ways birds use their sense of smell – from natural cologne to pest control
Blue tits sniff out herbs to line their nests with. taviphoto/Shutterstock Joey Baxter, University of Sheffield When we…