But earlier this month, researchers announced something overwhelmingly positive: Green sea turtles, the iconic marine species ...

5 mass extinctions wiped out 65–96% of species on Earth, with major events including the Ordovician, Devonian, Permian, ...

Ichthyotitan severensis was an absolutely immense ichthyosaur. Apex predators, ichthyosaurs were the orcas of their time, stalking the seas more than 201 million years ago, during the Triassic period.