PBS - NOVA: Extreme Animal Weapons (2017)
HDTV | 1280x720 | .MKV/AVC @ 2443 Kbps | 52 min 41 s | 1.04 GiB
Audio: English AC3 384 kbps, 2 channels | Subs: EnglishGenre: Documentary | Biography
From lobster claws and dog teeth to bee stings and snake fangs, every creature depends on a weapon. But some are armed to extremes that make no practical sense - whether it's bull elks with giant 40-pound antler racks or tiny rhinoceros beetles with horns bigger than their body. What explains giant tusks, horns and claws that can slow an animal down and even impair health and nutrition? Showcasing astonishing wildlife cinematography, Extreme Animal Weapons investigates the riddle of outsize weaponry and uncovers a bold new theory about what triggers an animal arms race.