Notice how our brains are much bigger than other animals', but have the same basic parts & layout. Mammal brains vary a lot by species, though, so I'm curious what animal they used for their "typical" mammal brain.

Zoological illustrations of spiders made by Frederick O. Picard-Cambridge for the Biologia Centrali-Americana, an encyclopedia of the natural history of Mexico and Central America Date

Chromosomes Importance

too small to see with the naked eye, and yet its everything we are, were and will ever be.

esta e unha foto donde se pode ver a estructura , nutricion , repruducion e curiosidades do reino animal