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~233 million years ago (±2 million years)
Theropod Line Diverges Within Dinosaria (from Saurischia)
Dinosaur Evolution
Ancestor of T.Rex and bird-line.
Theropods were the agile, sharp-toothed dinosaur branch that refined the classic predator body plan. They stood fully upright on two legs and balanced with long tails.
Science
Story
“Natural selection acts solely by the preservation and accumulation of small inherited modifications, each profitable to the preserved being.”
- Charles Darwin
- 1859
Evolution
Survival belongs to organisms that, over generations and through random mutation, respond effectively to change as environments shift over time.
Science
Quote
What was the IQ of Homo habilis, and did they ask questions?
Animal Intelligence
Homo habilis, living two million years ago, likely had an IQ of 50-60. Their early cooperation in hunting and childbirth may have sparked simple, abstract questions, marking the start of human cognitive evolution.
Science
FAQ
Dawn of Humanity: Sapiens in Their First Millennia
Ancient Humans
Our first 1,000 years as Homo sapiens were not crude half-humans waiting to become us. From the beginning, we were already remarkably capable, adaptable people living in a wide and busy world of other hominins.
Science
Article