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Specifically, chimpanzees were shown video clips of emotionally charged scenes, such as a detested veterinary procedure or a favorite food, and then were required to match these scenes with one of two species-specific facial expressions: "happy" (a play-face) or "sad" (a teeth-baring expression seen in frustration or after defeat).
Licking behavior has multiple causes and meanings and should not be simply interpreted as affection. Dogs that are familiar with each other may lick each other's faces in greeting, then sniff any moist membranes where odors are strongest (i.e. mouth, nose, anal region, or urogenital region.)
These animals have been observed practicing homosexual courtship, sexual behavior, affection, pair bonding, or parenting. Bruce Bagemihl writes that the presence of same-sex sexual behavior was not officially observed on a large scale until the 1990s due to possible observer bias caused by social attitudes towards LGBT people, which made ...
The cat in this video is showing how very happy he is to come running to his human when called, and best of all, we get to the see the experience from a cat’s-eye point of view, thanks to the ...
The video footage shows a heat signature trailing the brothers during one of their attempts, which may have been a crocodile. While lions are fearsome predators, a Nile crocodile can easily kill a ...
Animal non-reproductive sexual behavior encompasses sexual activities that non-human animals participate in which do not lead to the reproduction of the species. Although procreation continues to be the primary explanation for sexual behavior in animals, recent observations on animal behavior have given alternative reasons for the engagement in sexual activities by animals. [1]
To show the flow of the fog, I took a long exposure of 4 seconds. I often use fog as a design element to catch the viewer’s attention and make them take a closer look at the picture.
Homosexual behaviour is demonstrated by 120 known species of birds. [40] While an uptick in research on bird homosexuality – and animal homosexuality in general – has been coming out in recent years, it is common for some authors to labour in articulating the view any root cause or function of bird homosexuality is poorly understood.