Behavior
Non-scientists generally group lemurs by their primary time of activity: day or night. Noctural lemurs are typically smaller and more reclusive than their diurnal counterparts. Lemurs are vocal animals, making sounds that range from the grunts and swears of brown lemurs and sifaka to the chirps of mouse lemurs to the eerie, wailing call of the indri, which has been likened to a cross between a police siren and the song of a humpback whale.
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I really like the middle top pic… hehe.
Some weird things about lemurs . . . the key to their role in evolution seems to be their extraordinary eyes. It’s not just their ability to see well at night but also the frontal placement that allows them to develop a keen sense of the third dimension through parallax viewing. This goes right to the specialized occipital lobe development, allowing eye-hand coordination to rapidly intensify relationships with objects in the environment. And, of course, that TAIL! Very handsome!