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Why birds don’t have teeth
News:
- Recently a research paper published Biology Letters suggests that birds lost their teeth during the process of egg hatching.
Important facts:
- The reports suggest that the birds actually losse their teeth to speed up egg hatching.
- The research has compared the incubation period for dinosaur eggs which take several months while modern birds hatch after few days or weeks.
- 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.
- The embryo birds is vulnerable to predators and natural disasters
- 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.
- 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.
