10 Biological Mysteries We Still Can't Explain

Today, we take a look at some of the greatest mysteries from biology that keep scientists awake at night. Love content? Check out Simon's other YouTube Channels: Biographics: https://www.youtube.com/channel/UClnDI2sdehVm1zm_LmUHsjQ Geographics: https://www.youtube.com/channel/UCHKRfxkMTqiiv4pF99qGKIw MegaProjects: https://www.youtube.com/channel/UC0woBco6Dgcxt0h8SwyyOmw SideProjects: https://www.youtube.com/channel/UC3Wn3dABlgESm8Bzn8Vamgg Casual Criminalist: https://www.youtube.com/channel/UCp1tsmksyf6TgKFMdt8-05Q Today I Found Out: https://www.youtube.com/user/TodayIFoundOut Highlight History: https://www.youtube.com/channel/UCnb-VTwBHEV3gtiB9di9DZQ XPLRD: https://www.youtube.com/channel/UCVH8lH7ZLDUe_d9mZ3dlyYQ Business Blaze: https://www.youtube.com/channel/UCYY5GWf7MHFJ6DZeHreoXgw Simon's Social Media: Twitter: https://twitter.com/SimonWhistler Instagram: https://ift.tt/2EJ18Cm Text version: https://ift.tt/3d7BRUj →Subscribe for new videos every day! https://www.youtube.com/user/toptenznet?sub_confirmation=1 Find more lists at http://www.toptenz.net Source/Further reading: https://ift.tt/31jZlmD https://ift.tt/3oalsVs https://ift.tt/3Dd1LR5 https://ift.tt/3FZU4zi https://ift.tt/3iULpE2 https://ift.tt/368oUqe https://ift.tt/3plh5pF https://ift.tt/3obdSd0 https://ift.tt/3EltCjy https://ift.tt/3lqtS9t https://ift.tt/31cN5of https://ift.tt/3ob8FBV https://ift.tt/2BpOGaI https://ift.tt/3I5aXe1 https://ift.tt/3FZJvMK https://ift.tt/3pAR8mv https://ift.tt/3obnOTL https://ift.tt/3D7z3B6. https://ift.tt/3ofdWbX https://ift.tt/3DfNB1o https://ift.tt/2GVY1tQ https://ift.tt/3pARaL9 https://ift.tt/2ZJV37x https://ift.tt/3gVDhlh https://ift.tt/3kF0tb9 https://ift.tt/3a5WrAF https://ift.tt/3kWTPgr https://ift.tt/32uomYx https://ift.tt/31bSlbK https://ift.tt/3of1ada https://ift.tt/2ZIh2vs https://ift.tt/3rsFHQi https://ift.tt/3ocJwqz https://ift.tt/31kKqZB https://ift.tt/3IbTNLx https://ift.tt/3DboA7x https://ift.tt/3IdSvQa https://ift.tt/34bdQII https://ift.tt/3d5RQ5g https://ift.tt/2MQLarW https://ift.tt/3I8OZ9Z https://ift.tt/2ZRihpk