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Skin cancer selected our ancestors?

Skin cancer selected our ancestors?

Posted Wed, 26 Feb 2014 07:40:00 GMT by Paul Robinson

We can't find the fossils and the genome can give only some hints. How did the first human-like species survive and why did they have to be black. Mel Greaves has the answers.

Skin cancer selected our ancestors?

The right whale, by satellite

The right whale, by satellite

Posted Sun, 16 Feb 2014 16:43:00 GMT by JW Dowey

When you want to count how many rare animals are out there, remote cameras have come into their own. Now even the spy in the sky can help, with the first study of a whale species that has been having high mortality problems with its calves.

The right whale, by satellite

Hawaiian rise in endangered species

Hawaiian rise in endangered species

Posted Tue, 04 Feb 2014 15:11:00 GMT by Paul Robinson

We need technology to discover where and how endangered species survive. The US government have just declared 15 more Hawaiian species as endangered, but the islands have so many, it is difficult to see how they can all be conserved.

Hawaiian rise in endangered species

Flores Human Dwarf Debate

Flores Human Dwarf Debate

Posted Sun, 02 Feb 2014 17:01:01 GMT by Dave Armstrong

The feet of the Flores hominid might be more conclusive than the small head, if we ever come to better conclusions about its ecology, niche or even what it ate. The point is, we can’t even decide on its species and it's only 18,000 years old.

Flores Human Dwarf Debate

Flying and genome size: it’s true about the reduction!

Flying and genome size: it’s true about the reduction!

Posted Tue, 28 Jan 2014 20:03:42 GMT by Colin Ricketts

From humming birds to eagles, the birds have diversified their niches worldwide. Their genome however is reduced compared to us earthbound creatures!

Flying and genome size: it’s true about the reduction!

Australian outback dingoed or natural ecosystem?

Australian outback dingoed or natural ecosystem?

Posted Thu, 16 Jan 2014 12:16:01 GMT by Colin Ricketts

When they rage at the dingo, the ignorant fail to appreciate what many of us have thought. The need for such predation and scavenging is always present, plus we all need more natural systems than the awesome monoculture we get from tropical oil palms to “recyclable” spruce plantations.

Australian outback dingoed or natural ecosystem?

How fish evolved their migratory habits

How fish evolved their migratory habits

Posted Wed, 15 Jan 2014 00:01:00 GMT by JW Dowey

You would expect an evolutionary shift to be a trend, but in one great family of fish, there is little evidence that lightning strikes twice, especially in the same freshwater ecosystem!

How fish evolved their migratory habits

Bird speciations made clear

Bird speciations made clear

Posted Wed, 01 Jan 2014 15:59:00 GMT by Dave Armstrong

We can catalogue all the live and some extinct species on earth. The sooner we know all those insects and marine creatures, the quicker we can deal with conservation management in the most efficient ways possible.

Bird speciations made clear

Uruguayan fish show how they evolve

Uruguayan fish show how they evolve

Posted Tue, 24 Dec 2013 08:33:31 GMT by Dave Armstrong

Fish diversify into thousands of species, especially cichlids in African lakes. Mammals and birds can show equal diversity sometimes, so it would be intriguing to find more vertebrate classes subjected to investigations such as these, proving some genetic matches for lost and current animals we want to know more about.

Uruguayan fish show how they evolve

Manakins are athletic tropical courters

Manakins are athletic tropical courters

Posted Wed, 18 Dec 2013 12:00:00 GMT by Dave Armstrong

Birds are known for putting a lot of effort into their mating displays. In the tropics however, energy is at a premium, and sexual selection has been known to be more or less illogical in the abnormal effects it has on male display!

Manakins are athletic tropical courters

Chameleon aggressive display change

Chameleon aggressive display change

Posted Wed, 11 Dec 2013 09:10:00 GMT by Colin Ricketts

The way in which cephalopods and chameleons communicate is colour-based. More study is needed on how much information is passed on. The physiology, the status and the “drive” can be explained now by rate change and colour brightness in different parts of the anatomy

Chameleon aggressive display change

Many earthquakes are made by humans!

Many earthquakes are made by humans!

Posted Sun, 08 Dec 2013 14:59:31 GMT by JW Dowey

The foresight of some geologists has adjusted our treatment of politicians on several energy extractions and reservoir projects. They seem to be correct in blaming earthquakes on human interference, but can Chinese, Spanish or New Zealand politics afford to take note of dire warnings?

Many earthquakes are made by humans!

Patter of peripatus feet

Patter of peripatus feet

Posted Wed, 27 Nov 2013 11:30:00 GMT by Dave Armstrong

Not well known or noticed, some of the oldest landlubbers on the planet are fascinating as well as useful. They show us when and how the continents spread out in this paper. Have a look at the Onychophora, the velvet 'worms' or Peripatidae!

Patter of peripatus feet

Murder by the cannibal neighbours

Murder by the cannibal neighbours

Posted Sun, 24 Nov 2013 20:30:02 GMT by JW Dowey

When humans meet, the interbreeding and cross-cultural exchanges show up in history as major advances. When Neanderthals met, it was often only as small family groups, as large tribes are not recorded. If they met for dinner though, the outcome may not have been as you would have thought.

Murder by the cannibal neighbours

Wolf and tiger fables resolved

Wolf and tiger fables resolved

Posted Fri, 15 Nov 2013 07:50:01 GMT by Dave Armstrong

The telling of stories was the source of history, legends, and even science in some cases. This study of things fairy-like and fantastic is not about the child; it relates how modern technique can uncover ancient culture and how it really worked.

Wolf and tiger fables resolved

Aping human ecologies

Aping human ecologies

Posted Wed, 06 Nov 2013 07:38:11 GMT by JW Dowey

We have this need to understand how our ancestors developed into something beyond the chimpanzee. The problem of lack of skeleton evidence is avoided here with some new techniques of isotope recognition within tooth enamel.

Aping human ecologies

Scitech News Archives Page : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 

How do we face up to ice loss?

Posted Sat, 21 Mar 2015 10:31:00 GMT by Dave Armstrong

Britons prove their ancestry is diverse

Posted Thu, 19 Mar 2015 10:11:06 GMT by JW Dowey

Endemic Giant Salamander Threat-from its Neighbour.

Posted Wed, 18 Mar 2015 07:33:00 GMT by Dave Armstrong

Bees = humans, in false memory at least.

Posted Sun, 01 Mar 2015 19:00:00 GMT by Dave Armstrong

Dragons increase in species numbers.

Posted Wed, 18 Feb 2015 08:10:06 GMT by Dave Armstrong

Pollution: chemical weapons destroyed in US

Posted Wed, 04 Feb 2015 10:55:21 GMT by Dave Armstrong

Fascinating new squid behaviour in nature

Posted Wed, 28 Jan 2015 16:20:00 GMT by Dave Armstrong

Chimpanzee losses and successes.

Posted Thu, 22 Jan 2015 16:46:05 GMT by Dave Armstrong

Bats fly high and DNA techniques are classy

Posted Mon, 12 Jan 2015 19:51:01 GMT by Paul Robinson

Pluto approached by "strange" probe

Posted Tue, 06 Jan 2015 11:17:02 GMT by Dave Armstrong

Earth started out as 'candy floss'

Posted Mon, 28 Mar 2011 11:51:00 GMT by Martin Leggett

Nanotubes and the dawn of the flexible solar cell

Posted Wed, 28 Sep 2011 09:22:00 GMT by Dave Collier

Mapping Earth's ice from Space

Posted Mon, 29 Nov 2010 15:50:00 GMT by Louise Murray

Common species are most important in ecosystems

Posted Tue, 27 May 2014 10:13:00 GMT by JW Dowey

Neanderthals and us, the true story

Posted Fri, 02 May 2014 11:52:00 GMT by JW Dowey

Domestic dogs came from Asia to America

Posted Wed, 10 Jul 2013 08:47:46 GMT by JW Dowey

VISTA telescope discovers new star clusters

Posted Wed, 03 Aug 2011 19:02:00 GMT by Kieran Ball

Caught Green-Handed

Posted Sun, 03 Jul 2011 22:45:00 GMT by David Vranicar

Scientists revise long-held beliefs about plant biodiversity and biomass

Posted Sun, 25 Sep 2011 09:00:00 GMT by Dale Kiefer

Our ancient ancestors couldn't digest milk

Posted Thu, 23 Oct 2014 07:48:00 GMT by Dave Armstrong