Search results
Results From The WOW.Com Content Network
The echidna's brain is half neocortex, [17] compared to 80% of a human brain. [18] [19] Contrary to previous research, the echidna does enter REM sleep, but only in a comfortable temperature around 25 °C (77 °F). At lower or higher temperatures of 15 °C (59 °F) and 28 °C (82 °F), REM sleep is suppressed. [20]
Like the platypus, the echidna has a low body temperature—between 30–32 °C (86–90 °F)—but, unlike the platypus, which shows no evidence of torpor or hibernation, the body temperature of the echidna may fall as low as 5 °C (41 °F). [34] The echidna does not pant or sweat [35] and normally seeks shelter in hot conditions. [36]
The human body always works to remain in homeostasis. One form of homeostasis is thermoregulation. Body temperature varies in every individual, but the average internal temperature is 37.0 °C (98.6 °F). [1] Sufficient stress from extreme external temperature may cause injury or death if it exceeds the ability of the body to thermoregulate.
The long-beaked echidna's limb posture is sprawled, similar to extant reptiles like lizards and crocodilians. Although the stances between the animal groups are similar, the way the limbs move are very different between the clades. The echidna swings its limbs at a 45 degree angle while a lizard's is more horizontal.
Key to maintaining homeostasis, individual thermoregulation is the ability to maintain internal body temperature in humans, the most recognizable eurytherm. In humans, deep-body temperature is regulated by cutaneous blood flow , which maintains this temperature despite changes in the external environment. [ 24 ]
But another study cites a much lower limit of 89.6 degrees—the temperature at which humans start sweating. Beyond air temperature, humidity plays a big role too, and the higher the humidity the ...
Short-beaked echidnas feeds mainly on termites and ants, which live in nests in dry areas; the nest interiors are presumably humid enough for electroreception to work. [39] Experiments have shown that echidnas can be trained to respond to weak electric fields in water and moist soil. The electric sense of the echidna is hypothesised to be an ...
Iguanas go into this cold-stunned state as a way of protecting themselves until the temperature warms back up above 50 degrees. Magill said cold weather effects on iguanas depends on the size of ...