Seen up close, the anatomy of a mosquito bite is terrifying. The most dangerous animal in the world uses six needle-like mouth parts to saw into our skin, tap a blood vessel and sometimes leave a dangerous parting gift. Watch this 3 minute clip which explains all the mechanisms of just how a mosquito developed dining on our blood, and became such an effective killer: https://www.pbs.org/video/deep-look-mosquitoes/