Tag: PNAS
Collateral Damage: Mutations Decrease Fitness in More Ways than One
If mutations are the raw material for evolution, they are like explosives with unpredictable effects.
Just-in-Time Delivery in Living Cells
Our modern world relies on shipping and receiving, but many cargoes have to arrive at the right time to be useful.
In Biology, Intelligent Designs that Amaze, Amuse, and Entertain
Animals and plants keep giving scientists and engineers ideas for biomimetic designs. Sometimes observing the organisms is just plain fun.
Squid’s Got Talent — Super-Powers Astonish Scientists
The humble squid astonishes scientists with its super-powers. Are these marine champions really the products of random mutations and natural selection?
Security Gates in the Cell
A key characteristic of life is active transport: control over what enters and exits the cell. Closer looks reveal exquisite “selectivity filters” with moving parts that make active transport work.