How would humans have to adapt to live under the sea?

Question

(Behavioral, Structural, Functional, Reproductive Adaptations)

Its For A Science Assignment...

Any information/websites is very welcome...

thanks...

Answer 1

Firstly they would have to devlop a skin that is thicker than it is now and devlop more fat deposits like seals etc to keep warm in the water. THe salt in the water will cause problems with osmosis and the cells will have to keep their water and not become dehydrated ( due to osmotic gradient in the sea) THey would have to increse their lung capaicity and be albe to hold thier breathes for MUCH longer than they can at the moment like other marine mammals.

THey would have to become more streamlined and the legs may not be of use as single units, but better if they were ( stuck together, like someone with that condition called mermaid sydrome) so they could swim better and the amrs need to become more like flippers ( so skin between the fingers etc should stay...there is an enzyme during foetal devlopment which makes fingers/toes individuals...sometimes this does not happen and people have webbed fingers/toes)

reproduction would have to occur in aquatic conditions....hmm not overly sure about how whales/dolphins mate...something like them

structual well that and functional are kind of what above is about for behavoural....I can't think now a bit too tired!! but hope what i have written can help

Answer 2

by natural selection, probably everyone will be dead in the sea except Michael Phelps and his wife, then they will breed and have "swimming-capable babies", here goes another specie!

Answer 3

well first of all humans need to breathe, so they would need gills to breathe water, and air at the same time if they are adapting. secondly our skin isnt slick enough for the sea. because we already are somewhat oily i would say have skin more like a seal because they are oily as well. thirdly we need a more slick smooth, body, so we can rapidly swim without getting tired or stopping.

i wouldnt reccomend putting all your trust in me but some of these are true

Answer 4

How deep under the sea? Don't forget about pressure. You might want to look at how that affects the human body now, ie; what causes divers to get "the bends". This might lead you into different adaptations for circulatory systems as well as the obvious pulmonary stuff.

Our vision differs from that of sea creatures. Why can you see clearly when wearing a diving mask, but without it, things are blurry? If we had to adapt to swim, eyes forward, our vertical body arrangement would need to be changed to be able to travel and to see horizontally. (I always thought that flying while trying to look forward must give Superman a terrible crick in his neck. Don't even get me started on tying a table cloth around your neck so it can catch on stuff or flap you to death.)

I know that whales and sharks give live birth. You might look into how  they teach and protect their young (if they do).

Speaking of teaching, how do they communicate with eachother? Whales have kind of a fun thing going with their song. Some sea critters use color. If humans wished to adapt to deep-sea life, we'd have to have some way to store and preserve knowledge. Our laptops aren't gonna be very useful. Pencils and paper are out too.

How do sea creatures regulate their body temperatures? How do whales manage arctic waters? How do fish who don't have heavy layers of fat manage such temperatures?

Biology is so endless complicated that thinking about this is almost like watching a fractal. Every question leads to ten more.