Alligators are growing much smaller and reproducing less in the Florida Everglades. As an indicator species, this suggests the local ecosystem is in poor health, which puts dozens of other threatened and endangered species at risk, too.
Researchers have for the first time found evidence of tumors on a dinosaur fossil that isn't a member of the duck-billed dinosaur family. They were found on the fossilized vertebra of a long-necked titanosaur.
A small bull shark found struggling in the surf at Palm Beach, Florida, was dragged from the water for selfies. While the animal was later released into deeper waters, it is not clear whether or not it survived its time ashore. It is also one of the three sharks most dangerous to humans.
Numerous California songbirds known as pine siskins have been found dead from a communicable disease known as Salmonellosis. As a result, state officials urge people to remove artificial food sources such as birdbaths and feeders.
The Toronto Zoo's newest addition is a baby Indian rhino, a species currently listed as vulnerable on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species.
A rare Franciscana dolphin – just a baby – was the tragic victim of too much enthusiasm and even more ignorance from beach goers in Santa Terisita, Argentina.
In a series of marine-disease studies, researchers have for the first time linked warming oceans to the rise of lobster shell disease in New England and to the sea star wasting disease plaguing the U.S. West Coast.
Seven cold-stunned sea turtles were recently rescued from frigid waters off the coast of Florida. Four of the animals are expected to undergo surgery to remove debilitating tumors.
As rhinos evolved and grew bigger they became more susceptible to bone diseases, including degradation, inflammation and infection.
A rare western bumblebee species appears to be staging a comeback in the Pacific Northwest after experiencing dramatic population declines in the 1990s. Researchers are unsure what exactly caused the decline in the first place, but what remains even more of a mystery is why the bees have suddenly rebounded.
Researchers have discovered that the vast majority of infected hives can be traced back to one source -- the European honeybee, which is consistenly traded and imported to North America.
A critically endangered population of killer whales in the Pacific Northwest may be encountering more noise pollution than in the past. A recent study suggests large passing oil tankers emit sounds at frequencies killer whales use to communicate and echolocate. Ultimately, researchers say, this could impede their ability to find food they need to survive.
After nearly being wiped out in Britain, conservationists report the native European Polecat is making a strong comeback across the continent.
For the first time ever Chinese scientists have created genetically modified monkeys with a human gene for autism. The primates displayed asocial behavior, including becoming stressed when looked in the eye. Researchers from the Institute of Neuroscience in Shanghai hope their findings help treat the disorder in humans.