Why birds don’t have teeth

Why birds don’t have teeth

News:

1. Recently a research paper published Biology Letters suggests that birds lost their teeth during the process of egg hatching.

Important facts:

2. The reports suggest that the birds actually losse their teeth to speed up egg hatching.
3. The research has compared the incubation period for dinosaur eggs which take several months while modern birds hatch after few days or weeks.
4. Hatching occurs before because there is no need to wait for the embryo to develop teeth where a process consumes 60% of egg incubation time.
5. The embryo birds is vulnerable to predators and natural disasters
6. The faster hatching of eggs result in boosting the survival odds for all egg layered embryo including dinosaurs.

Note: In mammals, embryos are protected inside the mother.

7. According to some pprevious studies:

• Birds were living descendants of avian dinosaurs resulting in lost their teeth to improve flight.
• Beaks were better for eating bird food.