• SerialExperimentsGay [she/her, she/her]@hexbear.net
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    3 months ago

    ok you have activated my orca hyperfixation

    They use a wide range of strategies to hunt and kill prey

    While that’s true when we’re talking about orcas in general, each individual population only has one hunting strategy that they learn from the pod’s matriarchs as juveniles and stick to for the rest of their life. “Orcas” may actually be a up to a dozen different subspecies or even species or at least clearly different populations that have not interbred for many thousands of years. These “ecotypes” of orcas all have distinct habitats, hunting strategies, prey animals, behaviors, group sizes and vocalizations, and they vary dramatically in size, coloration and patterning, and even fin and head shapes.

    The orcas that are described here live in the Baya California and specialize in hunting sunfish. There’s shark and ray hunters operating in tiny pods of less than a handful of individuals off the coast of South Africa, a population of very small, yellowish-grey orcas in Antarctica that form groups of hundreds of members to hunt penguins, a wide-roaming (“transient”) population in the Northern Pacific that attacks seals and whale calfs in small pods, another gentically distinct (“resident”) population in an overlapping area that hunts fish in pods of 20-30 members and sometimes cooperatively hunts with bubble-netting humpback whales that are extremely chill with them but show extreme hostility against the transient killer whales that do not dare to go near the residents because they aggressively defend themselves against these. And that does not even include the ecotypes that everybody knows for beaching themselves to hunt fur seals in Patagonia or the ecotype that swims in formation to generate floodwaves that wash sleeping seals in the antarctic off ice floes.