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Endothermic Parental Care Hypothesis: This hypothesis proposes that homeothermy developed as a way to provide consistent and warm internal environments for developing embryos or young offspring. Endothermy could have enabled parents to keep their eggs or young warm, leading to improved survival rates and successful reproduction.
Thermographic image: a cold-blooded snake is shown eating a warm-blooded mouse. Warm-blooded is an informal term referring to animal species whose bodies maintain a temperature higher than that of their environment. In particular, homeothermic species (including birds and mammals) maintain a stable body temperature by regulating metabolic processes
An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "heat"), more commonly referred to as a "cold-blooded animal", [1] is an animal in which internal physiological sources of heat, such as blood, are of relatively small or of quite negligible importance in controlling body temperature. [2]
Some aquatic mammals, such as walrus, seal, sea lion, narwhals, beluga whales and killer whales, can store fat called blubber that they use to help keep warm in the icy waters. Some ungulates that live in frigid conditions often have pads under their hooves to help have a stronger tension on the icy ground or to help in climbing up on rocky ...
The safest way to do this is to use a heat sink such as a jug filled with hot water or stones warmed in the sun. These materials slowly release heat during the night, keeping temperatures beneath ...
Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different. A thermoconforming organism, by contrast, simply adopts the surrounding temperature as its own body temperature, thus avoiding the need for internal thermoregulation.
In equatorial climates and during temperate summers, overheating (hyperthermia) is as great a threat as cold. In hot conditions, many warm-blooded animals increase heat loss by panting, which cools the animal by increasing water evaporation in the breath, and/or flushing, increasing the blood flow to the skin so the heat will radiate into the ...
Historically, the same word was used by de Candolle to describe plants that require a moderate degree of heat for successful growth. [5] In his scheme, a mesotherm plant grew in regions where the warmest month had a mean temperature greater than 22 °C (72 °F) and the coldest month had a mean temperature of at least 6 °C (43 °F).