Prosimian primates that express this behavior have two K layers, whereas the only higher primates to display this behavior are part of genus Aotus, so-named because their ears are very hard to see.
Prosimian primates that express this behavior have two K layers, whereas the only higher primates to display this behavior are part of genus Aotus, so-named because their ears are very hard to see. Mayfly drift is most common when they exhibit this behavior. Gordon Walls came up with a namesake "bottleneck hypothesis" to explain how placental mammals evolved this behavior in the Mesozoic era. Several species falsely thought to display this behavior are instead (*) crepuscular. In animals that display this behavior, rhodopsin synthesis far outpaces its breakdown, and there are more rods than cones. For 10 points, name this behavior, not exhibited by diurnal animals, but instead by bats, owls, and other things that hunt at night.
Prosimian primates that express this behavior have two K layers, whereas the only higher primates to display this behavior are part of genus Aotus, so-named because their ears are very hard to see.
nocturnality [or word forms; or obvious equivalents until "at night" is read]