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Hace 2 días · Abstract. Organisms adapt to daily and seasonal environmental changes to maximise their metabolic and reproductive fitness. For seasonally breeding animals, photoperiod is considered the most robust cue to drive these changes. It, however, does not explain the interannual variations in different seasonal phenotypes.
Hace 4 días · Abstract. To humans, the diverse array of display behaviors that animals use for communication can easily seem peculiar or bizarre. While ample research delves into the evolutionary principles that shape these signals’ effectiveness, little attention is paid to evolutionary patterning of signal design across taxa, particularly when it comes to the potential convergent evolution of many ...
Hace 5 días · Animals from shallow, cold water had high amounts of phosphatidylcholine (PC), a cylindrical lipid that increases membrane fluidity and is observed in other cold-adapted poikilotherms . Outside of phospholipids, ctenophore lipidomes contained small amounts of cholesterol (<5%)—with the notable exception of warm-water animals—and low amounts of sphingomyelin (<0.5%) (fig. S2C).
Hace 4 días · Antelopes have adapted to many different ecological niches and so vary in their size, shape, locomotion, diet, social organization, and antipredator strategy. Despite the diversity of adaptations, one important generalization can be made: there is a marked difference between antelopes of closed habitats and those of open
Hace 2 días · The adaptive traits may be structural, behavioural or physiological. Structural adaptations are physical features of an organism, such as shape, body covering, armament, and internal organization. Behavioural adaptations are inherited systems of behaviour, whether inherited in detail as instincts, or as a neuropsychological capacity for learning.
Hace 15 horas · In the face of climate shifts, animals have developed remarkable survival strategies. Some species have adapted by changing their breeding seasons, at the same time others have evolved to withstand extreme temperatures through physiological adaptations. The Role of Temperature in Shaping Ecosystem Dynamics
Hace 5 días · The carnivorous diet of cheetahs is afforded by certain physiological adaptations, such as sharp teeth and non-retractable claws. Their teeth allow them both to kill prey and to tear the meat for consumption.
