Why do peanuts have skin on them? They already have an outer layer of protection?

The skin deveolpes from the mesocarp of the fruit. Not all biological features have a necssary function but I think in this case it will help keep the nut from drying out.Why do peanuts have skin on them? They already have an outer layer of protection?
it the outer layer of tissue.. like our skin that keeps in moisture and protects the delicate cells within for sproutingWhy do peanuts have skin on them? They already have an outer layer of protection?
The outer layer of protection is against mechanical damage as the stolon that produces the peanut grows into the soil. It is not however waterproof so an inner integuement is necessary to keep the plant embryo and its food supply from drying out. Peanuts are designed to produce other peanuts, not feed humans and animals so the design is to benefit the peanut.
Because that's the way God made them. Why don't you ask him?
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The same reason you have skin on you. You already have clothes for protection





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to keep dirt away
lol at wildchild!!!!!


and MissTiff, whoa!!!!!!!thats a scary thought, humans have skin!
We have a maple tree outside which throws out a lot of seeds every Year:


http://images.google.com/images?svnum=10鈥?/a>





When opening the cover, there's a little gree thing shaped as a peanut with a skin and inside two connected pieces.





Many seeds have this characteristic. The shell I'll assume makes sure it gets deep enough in the groud(shell breaks with little pressure after time, weather and temperature) to properly grow. The 'skin' of the peanut makes sure the two nutrient rich pieces are together until the plant has the right conditions to sprout.
It is the nature's way of protections.It is the seed coat or testa in the botanical language.
Because the skin, not the shell, protects the real ';egg'; inside. Each peanut shell holds two or so peanuts, each of which could grow into another plant. Inside each of these peanuts, you find two halves which provide food to the little nib on the end, the embryo. All of that is encased because it is one full system, ready to grow into a plant.
It keeps the nut from drying out and greedy animals from getting to it and devouring it.





Poetess777
To contain and protect. How many LAYERS of skin do we have - aren't we all part of the Oneness!
why do you think?
I think this is a great question and several of the answers contain really good information. I never thought about it before, and it is a fascinating question. This layer contains some powerful antioxidants and other materials that is the source of pharmaceuticals.





Lots of seeds have multiple layers. For example, the coconut has FOUR layers.
they were just made that way??
how did this become a featured question?
They're just like people. We have skin on us. You wouldn't wanna go around with no skin on you except bones right? Well I'm sure peanuts feel the same way. I guess it makes them feel . . . naked in a way.
To stay warm!
so it's harder to eat and to get you annoyed.
The skin is a membrane similar to the membrane lining the inside of an eggshell.
So that the skin will get stuck in your teeth, and when other little peanuts see you coming they know you're a peanut murderer and they can run for their little lives.
Natural protection against diseases.
They don't want people looking at their nuts! They're all male ya know! LOL, good question though.
so they can feel the outer layer
to keep the good cruch in it!
to protect the nut inside!
Every bio-creature has it for its protection.
i dont know
The skin protects the delicios oils that give the peanuts flavor
The skin is not just a dry second shell. Skins also have antioxidants like the outer shell, but at a higher level. The antioxidant helps to preserve the nut inside.
Everything that god put on this earth for us to eat has skin.