Winterkill lakes often have a characteristic fish community, presumably composed of species able to survive winter hypoxia. Our research on a small winterkill lake in northern Wisconsin indicates that fishes common in winterkill lakes have behavioral adaptations for tolerating or avoiding winter hypoxia...
Flowers in the desert have also evolved adaptations. Some flower adaptations include dropping their leaves/petals when water is scarce in order to avoid losing water vapor through their pores. Other flower adaptations include a fast reproductive cycle to take advantage of quick storms/rainfall as wel...
Prairie dogs have many adaptations like sharp claws to help it dig their burrows. They have sharp hearing so they can hear if a predator is coming. Prairie Dogs have whiskers that they use for balance so when they walk they won't fall over. The thick, dense coats of a sloth help keep...
The giant squid, which can get as big as 70 feet long when most squids top out a 12 inches, is attached to many myths. In truth, giantsquid adaptationsarose to allow it to survive and thrive in the deep ocean where light is very limited. Giant Squid Size The giant squid size could ...
Within the species Astyanax mexicanus, there are several inter-fertile populations of river-dwelling sighted fish and cave-dwelling blind fish which have evolved morphological and behavioral adaptations. We have recently reported a developmental and neurophysiological basis for the loss of aggressive behavio...
Consequently, these species have become models for studying the evolution of animal adaptations to extreme environments (Riddle et al., 2018; Yoshizawa, 2015), as well as ideal models to study environmental influences on the stress response of organisms. In a given environment, stressors and ...
Behavioral adaptations of these individuals can be to some degree predicted by the Darwinian theory of natural selection, while the close analysis of the habitat selection and competitive behavior in the field allows one to understand the mechanisms that determine the dynamics of natural populations. ...
Despite these predictions, it is unclear if polar bears can extend the duration that they can survive on land in the absence of marine-mammal prey by reducing their energy expenditure while on land, whether through behavioral or physiological adaptations, or if use of terrestrial food resources ...
At what depths or times of day they feed on marine snow-associated materials is unclear. The extreme transparency of leptocephali and use of shape-change behaviors or expandable chromatophores along with their gut swellings or external appendages may be adaptations for reducing predation rates ...
These behavioral changes were correlated with adaptations in multiple transcripts encoding important synaptic proteins in the brain’s reward circuitry. This study represents the first evidence that alterations in the gut microbiota affect behavioral response to drugs of abuse....