Colossal Biosciences® Profile picture
The de-extinction company.
Dec 15, 2025 8 tweets 2 min read
It’s a six-foot bird that can’t fly but can run 30 mph, hiss like a steam engine, and boom like a distant drum. Meet the emu, a cousin to the now extinct moa. It’s one of the two species we’re looking at as possible surrogates for a de-extinction of the moa.

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Nov 14, 2025 4 tweets 1 min read
52,000 years on ice, and the chromosomes are still intact. ❄️🧬 A woolly mammoth skin found in Siberia preserved the first “fossilized chromosomes” ever discovered. Think beef jerky… but straight out of the Ice Age. (1/4) Image (2/4) Image