Hey there and welcome to Life Noggin The world can have some pretty scary creatures in it
My goldfish here is a little cutie, yes you are Bubbles, but you can find some pretty freaky aquatic life if you journey down into the deep-sea Letâs take a look at some of these scary creatures and maybe learn a bit about how they evolved to be that way! To begin, letâs go down to the ocean depths Wow, itâs pretty dark down here Oh cool, thanks for the light Wait a minuteâ¦ thatâs no ordinary light
Thatâs the bioluminescent glow of one of the scariest, vampire-looking deep sea dwellers; the anglerfish! You see, the female anglerfishâs light comes from a piece of their dorsal spine that extends from their forehead Like a built in fishing rod, it glows with the help of a bunch of bioluminescent bacteria and lures the anglerfishâs prey in close enough for them to have a little lunch Itâs thought that the angling structure evolved from the spines of the fishâs dorsal fin And according to National Geographic, these underwater rascals have super big mouths and pliable bodies that allow them to gulp down prey bigger than they are! The only person I ever saw do that was Triangle Bob at the buffet last week Even though he may not have the same radiance, letâs not forget about the male anglerfish
Far less intimidating than their female counterparts, male anglerfish are little guys that have evolved into permanent parasitic mates to their females While youâre off having fun in your younger years, these guys are busy latching onto the females with their sharp teeth The male hooks up to his underwater wifeâs blood vessels and depends on her to get his nourishmentThey even end up physically fusing together over time! And I thought you human couples were clingy! But the female anglerfish isnât alone in her /glowing/ beauty In fact, it's thought that the majority of eukaryotic life that lives in the deep sea has bioluminescent capabilities
This includes other animals like the lanternfish and the dragonfish While it may be hard to determine exactly why these animals have evolved to have certain capabilities like bioluminescence, enlarged fangs, or gaping mouths, their similar deep-sea environmental extremes may have played a part This could include conditions such as little to no penetrable sunlight and high atmospheric pressure Further trying to understand bioluminescence in deep-sea creatures, a recent study investigated the evolution of species-specific bioluminescent structures in lineages of lanternfishes and dragonfishes They showed that deep-sea fishes that have these structures, which may be used for communication, are diversifying into new species at a quicker rate than the deep-sea fish that use bioluminescence for things like camouflage or predation
These findings can potentially lead to a better understanding of just how evolution has shaped the modern-day biodiversity in the deep-sea! I donât know about you, but Iâd love a little light to follow me around to brighten up my world! So whatâs the scariest creature that you know of in the deep-sea? Let me know down in the comments below! Make sure you come back every Monday for a brand new video As always, Iâm Blocko and this has been Life Noggin Donât forget to keep on thinking!