Human Sperm Is Rewriting DNA Earlier Than We Realized
Some genetic variation in sperm may begin earlier in development than scientists previously recognized. New evidence suggests that…
Scientists Discover a Gene That Boosts Youth – but It Comes With a Cost
Researchers found that vgll3 boosts early-life growth and reproduction but increases aging and cancer risk later, providing strong…
Tiny Dunnart Newborns, Each the Size of a Grain of Rice, Filmed for the First Time Making a Life-or-Death Climb to Their Mother’s Pouch
The fat-tailed dunnart (Sminthopsis crassicaudata). Credit: Wikimedia Commons For an animal smaller than a paper clip, the first…
Deep-Sea Ghost Sharks Grow Teeth on Their Foreheads, and Scientists Finally Know Why
Caught male Spotted Ratfish (Hydrolagus colliei) showing the [extended/erect] frontal clasper (tenaculum) on the front of the head.…