Ever see a frog "riding" a fish? They're actually engaging in " amplexus," in which the male frog holds onto his partner until she releases eggs, a behavior usually reserved for female frogs. Sometimes, that behavior is misidentified as cute "riding" behavior. The internet is full of examples of interspecies sex. Once, a single finch from one Galapagos island flew to another island and started a hybrid population between two finch species. Sometimes, the new species have different beneficial genes from both of their parents, and are able to survive better. ![]() ![]() Coyotes and wolves make coywolves, and grizzly bears and polar bears make "grolar bears." These groups of animals can come together and make brand-new creatures. ![]() Some interspecies sex can be beneficial to the surviving offspring, if they are genetically close enough (this depends a bit on how you define "species"). Other times, like in the case of the monkeys mounting the deer, the propositioned species doesn't seem to mind. Notably, one fur seal that was unable to mount a penguin "tore the bird to shreds and ate it," one of the researchers told The New York Times.
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