can it be eaten by animals?
The fruit, as well as leaves, bark or skin of the plant are said to be potentially harmful to quite a few animals and birds.
Avocado
Avocado leaves, bark, skin, or pit are documented to be harmful to animals; cats, dogs, cattle, goats, rabbits, rats, guinea pigs, birds, fish, and horses can be severely harmed or even killed when they consume them. The avocado fruit is poisonous to some birds, and the American Society for the Prevention of Cruelty to Animals (ASPCA) lists it as toxic to horses.

Avocado leaves contain a toxic fatty acid derivative, persin, which in sufficient quantity can cause colic in horses and without veterinary treatment, death. The symptoms include gastrointestinal irritation, vomiting, diarrhea, respiratory distress, congestion, fluid accumulation around the tissues of the heart, and even death. Birds also seem to be particularly sensitive to this toxic compound. 
where is the aztec civilization located on a map Mesoamerica, which extends from approximately central Mexico through Belize, Guatemala, El Salvador, Honduras, Nicaragua, and northern Costa Rica. which era did this civilization contribute to? The civilization reached its peak in the post-classic period from 1300 to 1521. did this area face colonization? Yes, by the Spaniards. can you name the idols worshipped here? Some of the important deities were Tlaloc, Huitzilopochtli, Quetzalcoatl and Tezcatlipoca. who is the last mentioned idol? A deity of the night, magic, prophecy and fate. how is it depicted? He is shown with horizontal face bands, wearing a heron feather headdress, a loincloth, and knotted sandals with an armband, and tinker bells either around his neck or ankles. what kind of food is eaten in the aforementioned place? Avocados, sweet potato, the turkey are some popular ingredients, and barbacoa, tamale, breads and tacos are some of the popular dishes in Mexico now. what is the nutritional value of the first mentioned food item? A typical serving of avocado (100 g) is moderate to rich in several B vitamins and vitamin K, with good content of vitamin C, vitamin E and potassium. how can people include it in their diet? It is used in both savoury and sweet dishes, and is common in vegetarian cuisine as a substitute for meats in sandwiches and salads.
wiki:5238927
Avocado [SEP] Toxicity to animals
Avocado leaves, bark, skin, or pit are documented to be harmful to animals; cats, dogs, cattle, goats, rabbits, rats, guinea pigs, birds, fish, and horses can be severely harmed or even killed when they consume them. The avocado fruit is poisonous to some birds, and the American Society for the Prevention of Cruelty to Animals (ASPCA) lists it as toxic to horses. Avocado leaves contain a toxic fatty acid derivative, persin, which in sufficient quantity can cause colic in horses and without veterinary treatment, death. The symptoms include gastrointestinal irritation, vomiting, diarrhea, respiratory distress, congestion, fluid accumulation around the tissues of the heart, and even death.