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An animal that exhibits a high degree of sociality is called a social animal. The highest degree of sociality recognized by sociobiologists is eusociality . A eusocial taxon is one that exhibits overlapping adult generations , reproductive division of labor , cooperative care of young, and—in the most refined cases—a biological caste system .
The division of labor creates specialized behavioral groups within an animal society, sometimes called castes. Eusociality is distinguished from all other social systems because individuals of at least one caste usually lose the ability to perform behaviors characteristic of individuals in another caste.
Charles Darwin considered the evolution of eusociality a major problem for his theory of natural selection. In The Origin of Species, he described the existence of sterile worker castes in the social insects as "the one special difficulty, which at first appeared to me insuperable and actually fatal to my whole theory". In the next paragraph of ...
The state of California has taken steps to strengthen animal cruelty laws, including regulations involving farm animals. In 2018, California voters approved Proposition 12, which mandated more ...
Whereas originally the animals planned for liberation from humans and animal equality, as evident from the "seven commandments" such as "whatever goes upon two legs is an enemy", "Whatever goes upon four legs, or has wings, is a friend", "All animals are equal"; the pigs would later amend the commandments with statements such as "All animals ...
Image credits: Chonky Woofers for my depression #2. My friend read reports about a stranded dog on Mt. Bross in Colorado and proceeded to climb the mountain and rescue said dog.
Humans may be the only animals who have episodic memory and who can engage in "mental time travel". [290] Even compared with other social animals, humans have an unusually high degree of flexibility in their facial expressions. [291] Humans are the only animals known to cry emotional tears. [292]
This is a collection of the best pics of all time where animals are living their best life from the Instagram page The Snuggle Is Real. And thank God someon. People sometimes do silly things, both ...