NewScientist The Last Word - Tag 'evolution' details

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Catching the red-eye Some bird species, such as the great-crested grebe (pictured), hunt underwater for fish and have red eyes. The red colouring is presumably beneficial to these diving birds, but in what way? If it does provide an advantage, why have other birds with similar habits not evolved red eyes? Ian McKechnie, Weybridge, Surrey, UK
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Asked by Moderator
on 2011-03-09 14:48:22

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Categories: Animals.

Tags: evolution, birds, red, diving, redeye, grebe.

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When a bee stings it dies. When a wasp stings it lives. Why did they evolve like this?
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Asked by rth
on 2011-02-13 17:09:46

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Categories: Planet Earth.

Tags: evolution, bees, Wasps, Sting.

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Don't call me ginger Why are orang-utans orange? It doesn't seem to be a camouflage mechanism. And why are they so hairy? They live in tropical forests after all. Peter Webb, London, UK
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Asked by Moderator
on 2011-02-09 15:01:20

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Categories: Animals.

Tags: evolution, orange, orangutan, forest.

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Shattering the Myths of Darwinism. I am currently reading Shattering the Myths of Darwinism By Richard Milton, any thoughts on his theories,especially his thoughts on radiometric methods of dating. http://www.sedin.org/propeng/shatter.htm
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Asked by Nicholas56
on 2011-01-12 08:49:37

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Categories: Our universe.

Tags: evolution.

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Are there any 4-legged arthropods Arthropods seem to come in any even number of legs above 4, e.g. 6 (insects), 8 (arachnids), ... and so on up to the very many legs of the millipedes. But are there, or have there ever been, any 4-legged arthropods, and if not, why not? (Particularly given that 4 legs or fewer seems to do just fine for all higher animals)
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Asked by wjheresrhys
on 2010-12-29 17:31:11

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Last edited on: 2010-12-29 22:11:04

Categories: Animals.

Tags: evolution, leg, Insects.

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Why do human beings use their hands when speaking? Did we evolve from using basic signals to speech?
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Asked by GeoffD
on 2010-12-14 21:41:28

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Categories: Human Body.

Tags: evolution, hands, Speech.

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What would an intelligently designed human look like?

One of the key arguments against intelligent design is that as a species we humans aren't designed well. For example: child birth, due to the narrow birthing canal and huge heads of our offspring, can quite often be fatal. The fact that our esophagus and trachea stem from same opening poses risk of choking hazard. The appendix's only job appears to be getting infected.

So my question is what would an intelligently designed human look like? Are our organs in their optimal place? Is there any thing we could stand to loose/gain?

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Asked by Jimbo_oc
on 2010-12-08 17:04:56

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Categories: Human Body.

Tags: humanbody, evolution, intelligence, birth.

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Why does evolution leave empty niches? Why do introduced species run wild? E.g. why does kudzu vine overrun parts of the USA? Why didn't something evolve locally to take advantage of the same conditions in the same way? or why did new Zealand's ground-nesting birds have no predators? Surely one would have evolved before all the nasty little mammals were introduced?
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Asked by twohills
on 2010-11-25 20:23:35

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Categories: Environment.

Tags: evolution.

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If were the average human used to be around 4ft tall, is our gravity getting weaker causing us to grow more? Orisitevolution
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Asked by Tomrw91
on 2010-10-26 14:49:28

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Categories: Planet Earth.

Tags: evolution, gravity, height.

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Why do we have allergies? What is the benefit? allergies seem unnecessary and even compromise our health- clearly making us less "fit" and less likely to survive. Why did we evolve to have allergies? Why haven't we evolved out of them?
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Asked by carly
on 2010-10-21 14:57:48