Evolutionary adaptations have excited researchers that have discovered a connection between mammals today and predators from about 300 million years ago.
"I had to take care of the rare filmed footage and pay tribute to the last representative of a species, which disappeared 85 years ago," said Samuel François-Steininger.
Tasmanian tigers are among the largest carnivorous marsupials known to science.
Megalodon could grow up to 18 meters in length and weigh as much as 37 tons.
Not all animals take the time to parent their young, especially if they have hundreds per clutch of eggs. But it looks like this invertebrate did.
Surveying four small Russian islands near the shores of Alaska, scientists spotted a grizzly "fence" of bones on the beach that turned up a rare discovery.
Several extinct members of the giraffe family found in Madrid are shockingly weird-looking.
Despite the odds, scientists have found one of the world's oldest preen glands in a 48-million-year-old bird fossil.
DNA evidence confirms it: The "tree lobster" that was declared extinct a century ago is actually holding on.