Fewer Fish
Fishing by taking out only the big fish cuts yield in half in just four generations.
Running can cause changes in the rodent brain that make it as addictive as cocaine.
Earth has vital organs -- critical systems -- that interact in complicated and unexpected ways.
Rats ate more and gained more weight when eating a thin, milk-like treat than when eating a thick, …
Eating artificial sweeteners causes rats to lose the cues for feeling full, leading to overeating.