NOVAExtreme Animal WeaponsPassport Season 44 Episode 19 | 52m 55s 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? Aired: 10/25/17 Expires: 11/21/20 Rating: TV-PG Closed CaptioningVideo has closed captioning.Buy Now:PBSBuy DVDs AppleBuy on iTunes checkmarkAdd to WatchlistWatch PreviewProblems Playing Video?Report a ProblemClosed CaptioningShare:Share this video on FacebookFacebookShare this video on TwitterTwitterShare this video on Google PlusGoogleShare this video via EmailE-mailEmbedEmbed Code for this videoEmbed CodeNOVAExtreme Animal WeaponsSeason 44 Episode 19Width in pixels px Height in pixels px Copied to your clipboardUnable to copyLabelCopy to ClipboardClick to copy embed code for videoCloseCloseReport a ProblemBefore you submit an error, please consult our Troubleshooting Guide.Type of ErrorVideo doesn't loadVideo loads, but doesn't playVideo jumps back/forwardOnly audio is streamingSponsorship playback errorOtherPlease add more detailsCancelSubmit ReportYour report has been successfully submitted. Thank you for helping us improve PBS Video.CloseCloseClose Learn More Down Venom's Healing Bite Toxic compounds in animal venom could yield new drugs. Venom: Nature's Killer Hunting down the most venomous animals to reveal their medical mysteries. The Depths of Animal Grief Animals that lose a child or companion can exhibit an apparent complex range of emotions. Tool-Using Animals Meet some of the creative tool-users in the animal kingdom.Episode Links NOVA's "Extreme Animal Weapons" Homepage Email Newsletter Shop NOVA
YouTube ChannelWhat the Physics?!Each episode explores something surprising or really interesting related to physics. Like the science behind the movie “Interstellar”… Or exploring what real parallel universes might be like… basically, things that make you go, “What The Physics?!”SubscribeSubscribe