Search results
Results From The WOW.Com Content Network
Hibernation functions to conserve energy when sufficient food is not available. To achieve this energy saving, an endothermic animal decreases its metabolic rate and thereby its body temperature. [3] Hibernation may last days, weeks, or months—depending on the species, ambient temperature, time of year, and the individual's body-condition.
Winter rest in an animal is different from true hibernation, since their metabolism is not reduced drastically. Body temperature is not significantly lowered, however their heart rate is reduced. This means that animals like the raccoon can quickly become active again if temperatures rise or the snow melts. [ 1 ]
Migration of cranes. Overwintering is the process by which some organisms pass through or wait out the winter season, or pass through that period of the year when "winter" conditions (cold or sub-zero temperatures, ice, snow, limited food supplies) make normal activity or even survival difficult or near impossible.
Human children, and those of other primates, exemplify a unique combination of altricial and precocial development. Infants are born with minimal eyesight, compact and fleshy bodies, and "fresh" features (thinner skin, small noses and ears, and scarce hair if any). However, this stage is only brief amongst primates; their offspring soon develop ...
Infant sleep is an act of sleeping by an infant or a newborn. It differs significantly from sleep during adulthood. [ 1 ] [ 2 ] [ 3 ] Unlike in adults, sleep early in infancy initially does not follow a circadian rhythm .
Zero to Three National Center for Infants Toddlers and Families, formerly the National Center for Infants, Toddlers, and Families, commonly known as Zero to Three and stylized as ZERO TO THREE, is a US nonprofit organization focused on the healthy development of babies and toddlers from birth to three years old.
A hibernation factor is a protein used by cells to induce a dormant state by slowing or halting the cellular metabolism. [1] This can occur during periods of stress, [ 1 ] randomly in order to allocate "designated survivors" in a population, [ 1 ] or when bacteria cease growth (enter stationary phase ). [ 2 ]
Aestivation (Latin: aestas (summer); also spelled estivation in American English) is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. [ 1 ]