Hummingbirds are evolving ‘weaponized’ beaks with teeth for fighting
A new study has found that some hummingbirds in South America are developing straighter bills containing serrated teeth to fight other birds.
Read More: http://bit.ly/2QtleEH
Hummingbirds are evolving ‘weaponized’ beaks with teeth for fighting
A new study has found that some hummingbirds in South America are developing straighter bills containing serrated teeth to fight other birds.
Read More: http://bit.ly/2QtleEH