ttyo888

then explain the blue skin of some mammals like the mandrill?

Hi I just noticed that the eye color of mammals and humans seem to have a wider range of colors then skin and fur of mammals. So I m wondering can mammals if possible produce purple hair or green skin the same way as the eyes of some animals? Blue Skin is well known in some mammals Discuss.

Thank you here's my final design of sorts

but hollow but flat... isn't that a bit weird or is it plausible since hair can be cylinder shaped and flat.

but is it possible to have hair that is flat, long and stiff? So it might function like a feather like here? Mine will be not so feathery anyway it will only be on the upper part of the membrane.

maybe the fur is stiff like a bird's feather and it only points in the direction where air flows over the wing?

If bats have wing membranes that have a layer of fur, can they still fly? I am trying to design a creature that is based on Bats, but however the creature lives in a pretty cold place. So I need to know whether fur will cause its wing membranes to become too heavy.

I see Okay I managed to find some creatures that have teeth that are almost rodent like. in other words they grow continuously, able to gnaw.etc Aye Aye Thylacoleo This one is pretty fearsome as so to speak but is it possible for the rodent to turn it's molars into steak knifes? This one has been chosen but I need another teeth design to make my carnivorous rodents more interesting and fearsome. But the one I am most interested is the Thylacosmilus the sabertooth marsupial. the creature only has two lower incisors and no upper incisors. the two sabre tooths grow continously like rodent's incisors. The lack of upper incisors seem a bit odd. how does he eat without upper incisors?

But the incisors that make Rodents so successful in the first place, won't they need to change or modified they to make they sharper or maybe they just have to get bigger?

Hi I just wanna discuss something. I am designing some predatory rodents which I need some scientific fact to support the design of the teeth. As you can see the Rodent skull hasn't changed much for millions of years in fact they all look very similar. If let say Rodents are to become more effective hunters when kind of shape of their teeth they will need to adopt in order to make carnivorans make a run for their money? And also can a mammal's molar or incisor change shape if evolution allows? Example, a flat molar into a shearing knife edge Thank you

How does Polydactyl affects humans and animals?

Does anyone know if Pinnae Size has any effect on ear sensitivity and echolocation?

And a place with no amphibians? Are there such a place?

I see... but still the extinction of amphibians would a loss to mankind right? Think about what secrets of regeneration their little bodies hold.

I see so different location different effect? OK but what are the global impacts on humanity if such an extinction had occured?

Ecological change? So in a few weeks after their disappearance, can I expect these disasterous events below? 1. Like say, a massive boost in invertebrate numbers. You would be walking in the streets and you see a huge "plague" of locusts but it turns out to be a plague of mosquitoes. ARghhhhhhhhhhh!!!!!!! And for Farmers and gardeners, slugs and snails are popping up like in the movie, Slugs and destroying the crops. 2. Pesticide usage will increase, polluting the waters. And no canary in the cage to test them. It takes us much later to find out the effects. 3. Because of the increase in invertebrate numbers, insect-borne diseases become more common than common cold. That would be too sci fi right?

Oh? so if they disappear, life goes on as per normal?

Well apparently it's our superior technology kinda makes ecosystems look fragile right? Anyway, I think it will take the ecosystems a lot of time to cope with the loss of the amphibians right. I can see that primitive lifeforms from a point of view make up the bottom most base of ecosystems on the planet. The bottom most base of a food chain is like the base of a building. If its gone, the upper sections will crumble! "If we and the rest of the backboned animals were to disappear overnight, the rest of the world would get on pretty well. But if they were to disappear, the land's ecosystems would collapse. The soil would lose its fertility. Many of the plants would no longer be pollinated. Lots of animals, amphibians, reptiles, birds, mammals would have nothing to eat. And our fields and pastures would be covered with dung and carrion. These small creatures are within a few inches of our feet, wherever we go on land — but often, they're disregarded. We would do very well to remember them." – David Attenborough, Life in the Undergrowth. Amphibians are on the third last levels of the food chain just on top of the invertebrates and plants. If they disappear, the animals on the higher levels will be affected right? And like the permian extinction, it will take years or millions of years to recover the void left behind by an extinct species. We might be able to survive but I think we may have to bear the pests like mosquitos and agricultural pests and the overwhelming number of their predators.

I know the cane toad was a pest but most of the species are beneficial to us as food or pest control. I would expect food production to drop since the pest to eat our crops multiply like crazy.

What will be the repercussions on humanity if amphibian were to become extinct?

Hi I am planning to write a story something along the line of BBC's Prehistoric Park. Except for one thing, the stars of the "zoo" are animals that we have directly and indirectly caused their demise. I am making a list of species that we should bring back to the present. The Dodo and the Tasmanian Wolf are among them. Since this is a "science" forum I feel that this place would suit such a topic, I do not have much knowledge on how zoos operate or how some of the animals in really can be kept in zoos in the first place without them escaping. Amongst such questions are" I got an Eagle who has a wingspan of over 3 metres, how am I going to make sure she doesn't fly over her enclosure and attack the moa's enclosure nearby. I even saved Megalania, the giant goanna from Australia, but can it survive on goats? I got a population of deer and goat for the carnivore's enclosure.

But how far are we till the point where HIV has spread so much that it is pointless to complete college.

I see well but a rodent with webbed feet is going to look a little odd...

Well the problem is that nowadays the age of puberty is getting younger. Now even grade school kids are clouded with desires of lust much earlier than the previous generation. A childish mentality and a uncontrollable urge caused by raging hormone make them commit blunders that will make some of them "grow" into responsible adults but then the scars from such a "childhood" can be permanent. I have a friend who volunteered among HIV patients and he mentioned that nowadays HIV patients can be as young as 14!

Well plants have taken to saltwater but my question is the animals that live there what kind of adaptations will be needed. Webbed feet? Salt-crying? Some animals have salt glands near the eyes or nose something.