Multiple choice general knowledge

Over the past 65 million years, mammalian life has diversified, and several million years ago, an African ape-like animal such as Orrorin tugenensis gained the ability to stand upright.

  1. True

  2. False

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mammals did indeed diversify after the Cretaceous-Paleogene extinction about 65 million years ago, and early hominids like Orrorin tugenensis (about 6 million years old) show adaptations for bipedalism. Orrorin is considered one of the earliest known hominins that could walk upright.