Our ancestors became warm-blooded later than we thought

Mammal ancestors’ shrinking inner ears may reveal when warm-bloodedness arose

Antarctica's Only Native Insect Could Be Destined For Extinction as Winters Warm

One weird type of exoplanet could support life outside the habitable zone. (Hydrogen And Helium atmospheres could keep exoplanets warm enough to be habitable for billions of years, even at huge distances from their stars.)