Research shows kestrels enjoy life far from the madding crowd
When the woods get crowded, female squirrels improve their offspring's odds of survival by ramping up how fast their offspring grow.
For animals, prevailing in a fight affects their likelihood of winning future conflicts. The opposite is true of losing a fight. The sex hormone testosterone is often believed to mediate this "winner effect". ...
(Phys.org) —A study by the universities of Manchester and Liverpool observing monkeys has found that those in the middle hierarchy suffer the most social stress. Their work suggests that the source of this ...
They closely monitored her hormone levels, watched her behavior to make sure the time was right and set up a quiet night with a mate.
He is performing handstands and eating constantly, and she is spraying her home with alluring scents—all the signs point to mating season for Britain's giant pandas.
Animals which maintain cooperative relationships show gains in longevity and offspring survival. However, little is known about the cognitive or hormonal mechanisms involved in cooperation. Researchers of ...
(Phys.org)—New research shows that disturbed habitats are resulting in increasingly poor diets for monkeys, and that the additional time and energy required to find food is causing concerning levels of ...
Eating certain veggies not only supplies key nutrients, it may also influence hormone levels and behaviors such as aggression and sexual activity, says a new study led by researchers at the University of ...
(Phys.org)—In male songbirds of the temperate zone, the concentration of sex hormones is rising in spring, which leads to an increase in song activity during the breeding season. In the tropics, there has ...
A study of the welfare of caged production hens has recommended chickens have access to a nest box to lay their eggs without being disturbed.
(Phys.org) -- The plant hormone ethylene lets green tomatoes ripen even after the harvest, whereas the closely related chili peppers show no such effect. Researchers from the Max-Planck-Institute of Molecular ...
(Phys.org) -- Five-month-old female alligators exposed during development to toxins found in a polluted Florida lake show changes in ovarian gene function and decreased body weight at hatching, but paradoxically showed accelerated ...