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Swimming sloths with aquatic adaptations

Swimming sloths with aquatic adaptations

Posted Wed, 12 Mar 2014 07:17:00 GMT by JW Dowey

One group of sloths made the quite unlikely shift to water, possibly because of a drying environment in the Miocene. This clever paper shows how they coped with a marine life, just like early whales, by adapting their bone compactness. Our pygmy sloths on the Panamanian island of Isla Escudo de Veraguas are the most recent speciation, around 9,000 years ago. These guys were several species on a sea trip!

Swimming sloths with aquatic adaptations

Fantastic ancient fauna precedes mammal evolution

Fantastic ancient fauna precedes mammal evolution

Posted Wed, 05 Mar 2014 16:50:00 GMT by Dave Armstrong

Animals of unfamiliar as well as familiar types took up niches in the ancient ecosystems, as birds and mammals developed and, of course, feathered dinosaurs ruled the roost!

Fantastic ancient fauna precedes mammal evolution

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

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 

Vainglorious peacock or successful breeder?

Posted Thu, 18 Sep 2014 14:20:00 GMT by Dave Armstrong

'Spiny' is the Super-Sized Predatory Dino

Posted Sat, 13 Sep 2014 13:28:28 GMT by JW Dowey

Ice melt increases at both Poles

Posted Sat, 06 Sep 2014 09:22:16 GMT by Dave Armstrong

The Planet of the Insects

Posted Thu, 28 Aug 2014 14:15:01 GMT by Dave Armstrong

Ocean temperature changes are a big alarm call

Posted Mon, 25 Aug 2014 09:09:01 GMT by JW Dowey

Old crocs never die, except when it's cold

Posted Wed, 20 Aug 2014 08:02:03 GMT by JW Dowey

Dream animal lives - as a fossil

Posted Mon, 18 Aug 2014 06:14:00 GMT by Paul Robinson

Tallest penguins ever are discovered

Posted Tue, 05 Aug 2014 08:55:00 GMT by Paul Robinson

Marmosets are marvelous !

Posted Sun, 20 Jul 2014 19:01:00 GMT by Paul Robinson

How techy is Eric?

Posted Fri, 11 Jul 2014 16:09:00 GMT by Dave Armstrong

New insights into the formation of the Earth, the Moon and Mars

Posted Fri, 31 Dec 2010 08:11:14 GMT by Michael Evans

Aping human ecologies

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

Mars Attracts

Posted Mon, 28 Nov 2011 18:02:00 GMT by Dave Armstrong

New 'bio-Styrofoam' seems 'pretty green'

Posted Tue, 23 Nov 2010 18:22:19 GMT by Rachel England

Manakins are athletic tropical courters

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

Sexual selection by Chemoattractants

Posted Tue, 20 Mar 2012 23:01:00 GMT by Paul Robinson

Scientists' research sounds warning for our oceans

Posted Wed, 04 May 2011 14:52:00 GMT by John Dean

Gregarious Cambrians (Siphusauctum gregarium) discovered

Posted Sat, 21 Jan 2012 13:35:01 GMT by Dave Armstrong

Fishy modelling

Posted Wed, 28 Mar 2012 12:08:00 GMT by Dave Armstrong

Uruguayan fish show how they evolve

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