LifeWhy I think genitals reveal the universe’s biological diversity Sex organs offer a unique window on evolution and how humans are altering nature in some very unexpected ways, says evolutionary biologist Brian Langerhans Opinion
LifeSea butterflies fly underwater just like insects do in the air The mystery of how a sea snail moves through water has been resolved: they move their wings just like flies do, generating lift to keep afloat ¿ìè¶ÌÊÓÆµ