Facts about Commerson's Dolphin
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Named after French naturalist Philibert Commerson, who first documented the species in 1767 near the Strait of Magellan.
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Commerson's dolphins consume primarily small fish and squid, with stomach analyses revealing they eat up to 2.5 kilograms of food daily to maintain energy in their cold-water environment.
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Commerson's dolphins have a remarkably short lifespan of approximately 18 years in the wild, significantly shorter than most other cetacean species of comparable size.
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Social groups of Commerson's dolphins typically consist of 2 to 15 individuals, with larger aggregations occasionally forming in productive feeding areas near the Falkland Islands.
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Female Commerson's dolphins in the Plata River estuary exhibit a lighter coloration pattern than their ocean-dwelling counterparts, suggesting possible adaptation to freshwater environments over multiple generations.
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Commerson's dolphins produce echolocation clicks at frequencies up to 130 kilohertz, allowing them to navigate and hunt in the murky waters of the Beagle Channel and other southern regions.
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Porpoising behavior allows Commerson's dolphins to reach speeds of up to 11 kilometers per hour while minimizing energy expenditure in their frigid southern ocean habitat.
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Measuring around 1.5 meters in length, Commerson's dolphins inhabit the cold waters off southern South America and possess distinctive black-and-white coloration patterns unique among cetaceans.