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  1. Apr 25, 2024 · Cold-blooded animals, or ectotherms, are species that regulate their body temperature according to the environment. This group includes reptiles, amphibians, fish, and invertebrates. They do not generate their own heat but instead rely on external sources like sunlight to warm up. Key characteristics include variable body temperatures, low food ...

  2. Apr 15, 2024 · A separate advantage is that warm-bloodedness provides a defense against infections by fungi and bacteria. Cold-blooded animals such as insects, reptiles, and amphibians are plagued by fungal infections. But very few parasitic fungi can survive above 37 degrees Celsius. This means that mammals and birds are now largely free of them.

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  4. May 1, 2024 · Most fish, indeed, fall into the ectothermic or cold-blooded category. From the tiniest guppy in your aquarium to the mighty sharks in the ocean, they adjust their body temperature according to their environment. This adaptation is critical for their survival, influencing their metabolism , behavior, and even habitat choice.

  5. May 3, 2024 · The terms come from the Greek words ‘endo’ meaning inside, ‘ecto’ meaning outside, and ‘therm’ meaning heat. Thermal image of a warma warm-blooded human holding a cold-blooded snake. Things that appear blue are colder than the parts that appear red and yellow, Credit: Arno / Coen

  6. en.wikipedia.org › wiki › ReptileReptile - Wikipedia

    May 5, 2024 · Aves (birds) See text for extinct groups. Reptiles, as commonly defined, are a group of tetrapods with an ectothermic ('cold-blooded') metabolism and amniotic development. Living reptiles comprise four orders: Testudines ( turtles ), Crocodilia ( crocodilians ), Squamata ( lizards and snakes ), and Rhynchocephalia (the tuatara ).

  7. en.wikipedia.org › wiki › TurtleTurtle - Wikipedia

    May 2, 2024 · The carapace bones develop from ribs that grow sideways and develop into broad flat plates that join up to cover the body. Turtles are ectotherms or "cold-blooded", meaning that their internal temperature varies with their direct environment. They are generally opportunistic omnivores and

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