Quirks and QuarksGetting A Grip On Early Tool Use - 2015/01/24 - Pt. 2Jan 24, 2015 | 9:20Australopithecus africanus had the capacity to make tools half-a-million years earlier than the earliest record of stone tools.
Quirks and QuarksPitcher Plants Turn Their Trap On and Off - 2015/01/17 - Pt. 6Jan 17, 2015 | 8:25The pitcher plant's slippery surface turns on and off with humidity and attracts more ants as a result.
Quirks and QuarksThe Roller Coaster Flight Of The Bar-headed Goose - 2015/01/17 - Pt. 5Jan 17, 2015 | 8:04Bar-headed geese fly over the Himalayas but maintain close proximity to the ground at all times.