Footage of the only known wild jaguar in the U.S. was recently released by the Center for Biological Diversity. The big cat can be seen alive and well, lurking through wooded areas and across a mountain creek. However, researchers warn the animal's habitat is threatened by a proposed mining site.
We've all heard about how noise pollution negatively impacts marine environments. But a recent study suggests that motor boats, rather than large cargo ships, easily stresses young damselfish which ultimately gives their predators the upper hand.
A recent study suggests the plight of the commen gray treefrog may help scientists measure the impact of climate change and better assess the health of a given ecosystem.
Researcher have for the first time explored the inner workings of Australian wombat warrens, or interconnected burrows, in hopes of understanding the rather elusive animals and their conservation status.
Pink deep-sea worms previously represented by only a single species have puzzled biologists for nearly six decades. However, four new worms recently spotted near California and Mexico have helped scientists properly place the creatures along the evolutionary tree of life.
Aggression is fairly common among primates, but a lethal attack among Bornean female orangutans was documented for the first time in a recent study.
A new study involving the ways ravens behave when they think they are being spied on suggests these famously intelligent birds posses the human-like ability of abstract thought.
It turns out that New Zealand's famed little blue penguins are actually Australian natives. A recent study concluded that New Zealand's native penguisn species was replaced by these interlopers between 1500 and 1900 AD.
Audubon's recent "BirdNote" podcast explains the peculiar head movements of owls. No, it's not just to creep out humans. There's a good reason for all that staring, twisting and bobbing.
Researchers have documented how leafcutter ants process leaves into nutrients underground. The remarkable nimble ants rely on a division of labor to get food on the table and conserve energy, thus ensuring they remain healthy and strong – the better to suit the colony.
A recent study on Border Collies confirms older dog can be taught new tricks, although younger individuals learn faster.
A new study suggests nurse sharks have the lowest metabolic rate of any shark species. This means they don't have as great an impact on their ecosystems as large predators do.
A new study from McMaster University challenged Charles Darwin's long-standing theory of female choice. Rather than females being drawn to males that have the most vibrant tail feathers or best dance moves, researchers suggest that, once aroused, courtship displays have no bearing on a female's mate preference.
Reed warblers have set up a "neighborhood watch" to protect their nests from invasive cuckoos, who lay their eggs in local nests for others to raise. When reed warblers spot a cuckoo, they mob it and emit alarm calls that alert neighbors a cuckoo is at large and they should monitor their eggs closely. This has greatly benefited warblers, but cuckoo populations appear to be suffering.
When darkness falls, bats emerge from their cave dwellings to forage, relying on the echos of their own calls to locate prey. A new study suggests bats avoid noise overlap in large groups by increasing the volume, duration and repetition rate of their own unique signals.