TIL when you trace their evolution back 47 million years, most of the world's bird species come from what is modern-day Australia. User Kendro38, 23 Nov 2020
TIL when you trace their evolution back 47 million years, most of the world's bird species come from what is modern-day Australia. User rpresser, in the Cell to Singularity subreddit, 23 Nov 2020
TIL when you trace their evolution back 47 million years, most of the world's bird species come from what is modern-day Australia. User ScissorNightRam, in the Today I Learned (TIL) subreddit, 23 Nov 2020