Amniotic egg

Amniotic egg is the type of egg produced by certain reptiles and birds. The embryo develops inside of a shell. Pictured is an amniotic egg my chicken produced.

Altruistic behavior

Altruistic behavior can be defined as animals giving help to other animals that may give itself a disadvantage of its own. For an example I have a picture of my mare(star) and her newly born foal (Bentley). Star would go after a predator such as a coyote or fox, to protect her baby before she would run away which is against a horse's nature.