New orangutan behavior observed for the first time
A male orangutan was spotted chewing up antibacterial and pain-relieving plants and applying the paste to a wound on his cheek.
Mammal feared extinct spotted on remote farm
This creature "was thought to be extinct a couple of decades ago, so it's a really rare and threatened species," said Bush Heritage Australia's Nick Mogford.
Fishing gear risking extinction of endangered whale
Female North Atlantic right whales that had been entangled were found to be 47 percent less likely to breed than those that had not.
Better Planet
Endangered whales are shrinking in size
Smaller North Atlantic right whales can't have as many babies, so climate-driven shrinking is further threatening the already critically endangered species.
First-ever image of a newborn great white shark revealed
"No one has ever been able to pinpoint where they are born, nor has anyone seen a newborn baby shark alive," filmmaker Carlos Gauna said.
Sustainability
Elephants, tigers, bonobos and more—safe ways to see endangered animals
Here are a few of the best eco-tourism places to visit and appreciate some of Earth's most threatened creatures
Republicans want to let people hunt grizzly bears after woman attacked
Two Montana Republicans reignited calls to have the grizzly bear removed from the federal threatened and endangered species list after a hiker was killed.
Elephants have a very human way of eating dinner
Researchers found that elephants like to eat different foods on different days, based on evidence gathered from their dung.
Monkey carried around dead baby for days, then ate it
The drill, a female named Kumasi, was caught on video eating the body of her infant son, which had died after living for only eight days.
Mystery deaths of gray whales washing up on U.S. coasts alarm scientists
The gray whale that washed up in Washington on June 27 was the fifth found dead along the state's coast in June 2023 alone.
Feral cats to be poisoned to save other species from extinction
After decimating native species, invasive feral cats in Australia are now being poisoned using a spray gel to cull their effects on native wildlife.
Mystery sparked by rare whale species found on Massachusetts beach
The whale died hours after it was found, and was discovered to have a swollen brain, leading researchers to hypothesize that it may have had a viral infection.
The species evolving in the wrong direction
Woylies are critically endangered marsupials that are evolving to be even less adept at avoiding the predators that threaten them.
The battle to fight chlamydia in koalas
Over 80 percent of koalas are estimated to be infected with a strain of chlamydia, which can lead to blindness, infertility and even death in the marsupials.
Litters of endangered red wolf puppies born in North Carolina zoo
Nine pups were born over the past week in the zoo, which will help bring the critically endangered species back from the brink of extinction.
Critically endangered sawfish found with saws removed: "Cruel"
Four dead sawfish were found on a beach in Western Australia, one of the few places in the world where the endangered species still thrives.
Shark weighing 1,000 pounds caught by Texas fishermen: "It was a battle"
"It was a battle back and forth for almost an hour and 30 minutes," one of the fishermen said, adding the duo finally got "to see the true size of the monster."
Hundreds of baby seahorses released in bid to save species
The habitats of these seahorses have declined by up to 90 percent in some areas, leading conservationists to release juveniles into seahorse "hotels".
Polar bear rejected by mother finally reunited with family
The polar bear, Laerke, was rejected by its mother at 2 days old after a medical issue, so was raised separately from her twin sister Astra.
Why frog species are being wiped out across the world
Frogs across the world are being infected by a skin-infecting fungus that is responsible for driving many species into being endangered or even extinct.
Mystery sparked as sick turtle found spewing 'pink liquid'
Green sea turtles are endangered, with plastic pollution posing a major threat to the species due to the turtles eating or becoming entangled.
Mystery as giant dead turtle discovered on beach
The cause of death has not yet been determined, but other leatherback turtles have recently been rescued from (or found dead in) shark nets.
Man who survived hyena attack trampled to death by elephant
The man was killed by a lone elephant on his way home in another example of human-animal conflict in the region.
River dolphin bites woman's foot down to bone in extremely unusual attack
Experts explain that these endangered dolphins are usually non-aggressive, and will only attack if they feel under threat.
Pygmy sperm whale on Florida beach was emaciated with abnormal heart tissue
An expert told Newsweek: "The most significant findings were emaciation and abnormalities in the heart tissue. These were consistent with heart disease."
Shoebill: Africa's giant, weird prehistoric-looking bird
The massive shoebill, a 5-foot-tall dinosaur-like bird, is listed as a vulnerable species due to its habitat being destroyed.
Dead tiger found in lake, foul play "not been ruled out"
The tiger was found to have been tied to a boulder with wire before it was thrown into the lake, leading investigators to suspect foul play.
De-Extinction plan to bring back dodo could have bad consequences
The expensive effort to bring the dodo back from the dead could have positive impacts in ecology and research, but could also negatively affect other animals.
Sea lion gate-crashes family picnic: "She took over"
The New Zealand sea lion, named Paige, had been previously spotted nearby and even had to be removed from a road.
Rare "December" blue whale appears far from where it should be
Blue whales usually migrate south for the winter months, mating and giving birth in the warmer waters off Mexico and Central America.