Browse the archive

Category: Biology

Monkey Feet Complicate a Key Assumption About Human Evolution

Wild sooty mangabeys flex their midfeet by as much as 46 degrees, showing why fossil foot shape alone cannot settle ancient climbing ability.

Why Snake Embryos Coil Right-Handed Inside Their Eggs

More than 800 embryo images reveal a shared right-handed spiral, with unequal growth around a gut tether offering a mechanical explanation.

Tasmanian Tiger Skull Reveals a Fast-Snapping Hunter

A broad skull comparison suggests the extinct thylacine used fast snapping bites on smaller prey—not wolf-like attacks on sheep.

Tuberculosis May Evolve Drug Resistance While Drying in Air

Drying damages tuberculosis DNA and activates repair pathways that may help some rifampin-resistant strains survive transmission.

Self-Blinking Probes Image DNA Near Double-Helix Resolution

New fluorescent probes image chromatin at 20 nanometres in living cells and localize dyes to about 3 nanometres in preserved cells.

Can Identical Twins Have The Same DNA?

The physical similarities and shared genetic origins of identical twins have always engrossed scientists and the public. They are born from a single fertilized egg that splits into two embryos.…