Earth’s history is filled with incredible milestones, and the emergence of the first animals is one of the most captivating.

A massive predator once roamed the Earth, towering over its rivals and casting a long shadow on the ancestors of T. rex. This giant, now known as Ulughbegasaurus, ruled the prehistoric world around 90 ...

Adult colossal squids have occasionally surfaced on fishing lines, but none had been witnessed alive in the abyss where they thrive.