Understanding the key differences between male and female anatomy is essential for every artist. This video breaks down the ...

F or most of human history, coupling up was not merely a norm; it was a necessity. Before reliable contraception, women could ...

Modern genetics reveals that over 50 genes across many chromosomes—not just X and Y—govern sex development. The term “sex ...

Paleontologists studying tail fractures in hadrosaurs think they’ve found a key clue that could finally help tell female dinosaurs from males. This discovery, based on hundreds of healed spinal ...