Do you know why narwhals engage in tusking? This video can help you know why they don't! Unless... unless you can't handle the TRUTH?
0:00 Intro
0:37 Symmetry in Animals: the usual
3:01 Asymmetry in Animals: weird!
3:39 Asymmetry Examples: invertebrates
7:21 Asymmetry Examples: vertebrates
10:55 The Great Narwhal Tusk Rubbing Caper!
16:49 The Final Citation Arrives!
19:15 BONUS FACT
Негізгі бет Ғылым және технология Asymmetrical Animals and the Great Narwhal Tusk Rubbing Caper
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