"It could be between 25-30 degrees Celsius [45-54 F] warmer on average than today," study author Alexander Farnsworth told Newsweek.
The tree, found in urban Brazil and called the Ilex sapiiformis, or Pernambuco holly, was first discovered in 1838 and has not been seen since.
Paleontologists believe this dinosaur may have been able to change the color of its skin, like the modern-day chameleon.
"The overall population of the species will reduce rapidly over the coming decades," researcher Peter T. Fretwell told Newsweek.
Megafauna like massive elephants were once thought to have gone extinct due to humans arriving, but it turns out we weren't responsible after all.
"Dolphins and porpoises washed ashore during our investigation exhibited fresh war-related injuries on their bodies," said researcher Ewa Węgrzyn.
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.
The last known Tasmanian tiger—the iconic Australian mammal that was the largest living carnivorous marsupial—died in 1936.
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.
Bones believed to be of the antique bison, an extinct species of bison larger than modern day bison that died out around 10,000 years ago, have been discovered.
Scientists are hoping to create Asian elephants that can withstand sub-zero temperatures like mammoths once did in order to help conserve the Arctic.
The Galápagos Islands are a remote archipelago in the Pacific Ocean home to a wide variety of unique flora and fauna species.
"Part of its root was sticking up a bit and I pulled it up," a diver said. "Later on the boat, I realized it was bite marks."
The ribs of the near-complete fossil, estimated to be at least 85,000 years old, were seen sticking out of the ground by an archaeologist and a local collector.
"Seeing the skull in such great condition really helps with being able to visualize how this creature may appear in real life," said photographer Israel Baldago
"The human Y is in the very last stages of degeneration, and the big question is how long till it, too, gets lost," expert Jenny Graves told Newsweek.
The skeleton is one of only three pregnant T. rex skeletons to have been discovered.
Footprints of the extinct wild super-cow reveal the secrets of this long-lost animal's past.
Habitat fragmentation is threatening the long-term survival of "the most irreplaceable mammal"
The tiny Amargosa vole doesn't live anywhere else on Earth, and a 2015 forecast said it had an 82 percent chance of extinction within five years.
There are around 4,600 species of cockroaches in the world, and they are infamous for being resistant to environmental change, and even the nuclear apocalypse.
Snow Cone was last seen on September 22, emaciated and covered in lice.
The threatened species is being reintroduced to Texas in an effort to increase their dwindling numbers.
The Greenback cutthroat trout was discovered reproducing naturally after decades of intensive recovery efforts to bring the fish from the brink of extinction.
She was spotted emaciated on Thursday, and one whale charity posted "her death after at least 18 months of suffering will mean the likely loss of her lineage."
Snow Cone has been entangled in fishing gear ever since she was first spotted by researchers in March 2021, and it now appears to be taking its toll.
Pando is a 100-acre aspen forest in Utah where all the trees share one enormous root system.
The two fossilized eggs, which were filled with clusters of calcite crystals, are from a new species of dinosaur.
Deep sea mining involves scouring the seabed with machines for concentration of important or valuable minerals, such as manganese.