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A cow/calf winter herd is a herd that consists only of female elk and their young. In a normal winter, defined as one where there is a decent amount of snow fall, one study found that when the groups of cows and calves were safe from predation by wolves, about 75.6-83.0% of their diet was made up of graze whereas when wolves were present this number dropped to 61.6-69.4%. [3]
Individuals living in large groups may be safer from attack because the predator may be confused by the large group size. As the group moves, the predator has greater difficulty targeting an individual prey animal. The zebra has been suggested by the zoologist Martin Stevens and his colleagues as an example of this. When stationary, a single ...
Aggressive mimicry compared to a defensive form, Batesian mimicry.The mechanism is often called "Wolf in sheep's clothing".The model for an aggressive mimic can be a harmless species, in which case the 3 roles are separate, or the model can be the prey itself, in which case there are only 2 species involved.
However, animals may also imitate the behavior of a small rodent or alternative prey item for the predator; [13] [14] [15] imitate young [12] or nesting behaviors such as brooding (to cause confusion as to the true location of the nest), [13] mimic foraging behaviors away from the nest, [9] or simply draw attention to oneself.
The decoy is designed to seduce radar-guided anti-ship missiles by simulating the radar cross section of a ship, presenting itself as a more attractive target than the ship. The system is deployed in pairs. The deployment process takes a few seconds.
Humans are some of the best long distance runners in the animal kingdom; [6] some hunter gatherer tribes practice this form of hunting into the modern era. [7] [8] [9] Homo sapiens have the proportionally longest legs of all known human species, [3] [10] [11] but all members of genus Homo have cursorial (limbs adapted for running) adaptions not seen in more arboreal hominids such as ...
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