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Females can also form alliances with other females for protection against aggressive males. [1] Researchers have observed such alliances in many other female-bonded species, including other Old World monkeys such as macaques , olive baboons , patas and rhesus monkeys, and gray langurs ; New World monkeys such as the capuchin; and prosimians ...
Because females do not need extra help raising their nests, males can afford to invest in multiple females. Nonetheless, male parental care is often found in many polygynous territorial bird species, [9] leading to female competition for male assistance. Most often, males will seek a second female to impregnate, once the first female has laid ...
Indirect benefits of mating for females can be gained through sperm competition to attain "good genes", cryptic female choice, increased genetic quality, and genetic diversity. [7] Females spiders ( Pisaura mirabilis ) store more sperm from gift-giving males suggesting that sperm storage is under female control through cryptic sperm choice. [ 8 ]
Clownfish are sequential hermaphrodites, meaning that they develop into males first, and when they mature, they become females. If the female clownfish is removed from the group, such as by death, one of the largest and most dominant males will become a female. The remaining males will move up a rank in the hierarchy.
In 2021, a US-based private “monkey haters” online group, where members paid to have baby monkeys tortured and killed on camera in Indonesia was closed down, but other extreme videos have ...
Capuchin monkey. A study at Yale–New Haven Hospital trained capuchin monkeys to use silver discs as money in order to study their economic behavior. The discs could be exchanged by the monkeys for various treats. During one isolated incident, a researcher observed what appeared to be a monkey exchanging a disc for sex. The monkey that was ...
First-class funny monkey pictures This collection of funny monkey pictures is sure to get you chuckling. Some of these goofy primates look like they're competing in a “silliest monkey gets a ...
For example, female white-headed leaf monkeys were observed to wean their infants significantly more quickly during male takeovers as compared to socially stable periods. [32] Females with infants too young to be weaned left with the old males and returned after their offspring had fully weaned, again after a significantly shorter weaning ...