It's Saturday! This week, in an eminently practical analysis of the Boltzmann brain conjecture, physicists put constraints on the idea that memories could arise from random fluctuations in entropy ...

Add Yahoo as a preferred source to see more of our stories on Google. Picture this: you’re a scientist digging near the Amazon rainforest, and you pull a jawbone out of the ground that looks so wrong ...

Picture this: you're a scientist digging near the Amazon rainforest, and you pull a jawbone out of the ground that looks so wrong you assume it broke underground. Then you find another one. Same weird ...

This aerial view shows the Amazon rainforest near the municipality of Paragominas, Para state, Brazil, on November 12, 2025 during the COP30 UN Climate Change Conference. MAURO PIMENTEL MAURO PIMENTEL ...

In April of 2025, headlines across the world announced that the dire wolf had been brought back from extinction. This 130-150 lbs wolf species, about 25% heavier than modern-day gray wolves, had not ...

A version of the dodo bird (Raphus cucullatus) could make a return someday soon. Colossal Biosciences announced this week several milestones in its quest to bring the extinct species back to life. On ...

Colossal Biosciences made a record-breaking 20 edits across 14 genes in gray wolf cells by adding extinct dire wolf DNA. This was the first time ancient DNA has been used to bioengineer an extinct ...