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Humans were rare, once

Humans were rare, once

Posted Sun, 20 Oct 2013 10:34:00 GMT by JW Dowey

We worry about how human species colonised the rest of the world after leaving Africa. There is so little evidence, we have to rely on the latest technology to try and unravel the fascinating stories of travel and survival these early peoples must have had. Here, 50,000 years ago, is conjecture about what would have been an almost impossible voyage.

Humans were rare, once

Your ancestor was a little therian

Your ancestor was a little therian

Posted Thu, 03 Oct 2013 12:58:48 GMT by Colin Ricketts

We can visualise distant ancestral forms of many organisms by imagining similar species alive today, or complete fossils. Here the scarcity of evidence on early mammalian teeth makes it difficult, but not impossible, to show how incredible events shaped our past into the flower, insect and mammal-dominated Paleocene.

Your ancestor was a little therian

The Earth gets oxygen early

The Earth gets oxygen early

Posted Thu, 26 Sep 2013 11:09:21 GMT by JW Dowey

Before life on earth began, what did David Attenborough do with himself?

The Earth gets oxygen early

Oh Sole Mio! (solar ship is home, almost)

Oh Sole Mio! (solar ship is home, almost)

Posted Thu, 12 Sep 2013 05:58:02 GMT by Dave Armstrong

The ultimate in powered ships, clean and efficient, cutting through the waves with only the sun to power it. We could donate one of these to the Marshall islands, where sun but not much else is in abundance.

Oh Sole Mio! (solar ship is home, almost)

Bats and dolphins have a similar genetic heritage

Bats and dolphins have a similar genetic heritage

Posted Thu, 05 Sep 2013 08:21:19 GMT by Colin Ricketts

The thought of bat and whale being related because they have similar hearing is incorrect. If we study a range of species, though, the evolutionary convergences of many kinds of sensory structures is very involving. What's next? Our chimpanzee friends will be developing their typing skills before we know it!

Bats and dolphins have a similar genetic heritage

To fish or not to fish

To fish or not to fish

Posted Wed, 04 Sep 2013 13:21:58 GMT by Colin Ricketts

The fish that benefit from trawling disturbance eat invertebrates such as annelids. Other invertebrates, especially the heavy species, are decimated by trawling and need much more protection by modifying the trawling gear or simply preventing such damage to the environment.

To fish or not to fish

Is there Martian life on Earth?

Is there Martian life on Earth?

Posted Fri, 30 Aug 2013 10:22:27 GMT by Paul Robinson

The geochemists get a poor press, so they must have decided to soup up their theories and grab some oxygen for their reputation. The claim is that being impossible on earth, ribose sugars can only have been synthesised on Mars, 4 billion years ago. And then...

Is there Martian life on Earth?

Honeyguide selection by interference competition

Honeyguide selection by interference competition

Posted Wed, 21 Aug 2013 09:30:50 GMT by Dave Armstrong

When cuckoos and their fellow brood-parasites choose their laying site, there is now some evidence that they compete with each other. They have to deal with the host species, but their own species can be their worst enemy.

Honeyguide selection by interference competition

California spirit dreams of ancient language

California spirit dreams of ancient language

Posted Tue, 20 Aug 2013 09:06:39 GMT by Colin Ricketts

The history of Americans is found fascinating, even though we have precious little knowledge of it. The momentum builds with this intriguing study of North American language groups and their relationship with rich and poor ecologies.

California spirit dreams of ancient language

Niches and speciation in orca

Niches and speciation in orca

Posted Wed, 14 Aug 2013 09:26:48 GMT by Colin Ricketts

It might seem disappointing to fond that your Atlantic orcas don’t have the speciation evident in some Pacific pods. However, the great find here is that populations almost certainly have to be physically separated, as well as having different niches, in order for a new species to be evolved.

Niches and speciation in orca

The dolphin remembers

The dolphin remembers

Posted Wed, 07 Aug 2013 10:05:48 GMT by Colin Ricketts

We think we're special, but more and more creatures are appearing as altruistic, language-capable and downright human. Dolphins of course will be one of the first in many people's minds to demonstrate high-level mental capacity, or in this case, great cognition and lengthy memories.

The dolphin remembers

Giant rivers of water in the air

Giant rivers of water in the air

Posted Thu, 25 Jul 2013 09:11:28 GMT by JW Dowey

Noah's flood was a warning according to the various ancients. These floods are also warning us about something. Do you really wonder what that is?

Giant rivers of water in the air

Heated cheetah hunts!

Heated cheetah hunts!

Posted Wed, 24 Jul 2013 08:59:16 GMT by Colin Ricketts

The research on cheetahs has previously left us worried about their ability to speed up their hunt if they overheat. However, medical approaches using bio-sensors have proved that the species is fully capable of using its great abilities if it is so inclined.

Heated cheetah hunts!

Domestic dogs came from Asia to America

Domestic dogs came from Asia to America

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

Dogs are just dogs, but we owe them a lot for so many reasons, and now they could help elucidate the history of ancient Americans.

Domestic dogs came from Asia to America

Social Mobsters in the Kalahari

Social Mobsters in the Kalahari

Posted Thu, 04 Jul 2013 12:59:00 GMT by Dave Armstrong

The study of how cleverly the females in a meerkat mob conduct their social lives while innocently foraging in the desert. Avoiding exclusion is the name of the game.

Social Mobsters in the Kalahari

How to investigate your inner fish!

How to investigate your inner fish!

Posted Mon, 03 Jun 2013 13:00:00 GMT by Dave Armstrong

When fish gave rise to our land-based ancestors, some of the fish DNA was left behind as selection chose attributes that suited land best. Fortunately we can use the parts of the genome that remain to investigate change in all the land vertebrates.

How to investigate your inner fish!

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 

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

Latest on your blood

Posted Thu, 03 Jul 2014 08:05:19 GMT by JW Dowey

Foxy moves for successful species

Posted Wed, 11 Jun 2014 08:37:43 GMT by Colin Ricketts

Finding sheep 'geneius' in their genome

Posted Fri, 06 Jun 2014 06:28:01 GMT by Dave Armstrong

There's an app for that: Turn your iPhone into a medical imager

Posted Tue, 04 Oct 2011 11:35:00 GMT by Dale Kiefer

Ice Warms in Antarctica

Posted Fri, 28 Oct 2011 15:44:01 GMT by Dave Armstrong

KATWARN project: Preparing for the unexpected

Posted Wed, 16 Mar 2011 18:32:00 GMT by Michael Evans

Country's largest quake means more risk not less of future shocks say scientists

Posted Thu, 26 May 2011 15:09:00 GMT by Colin Ricketts

Rotterdam plans electric vehicle fleet

Posted Mon, 30 May 2011 11:11:00 GMT by Julian Jackson

No nearer to reasons for Neanderthals' extinction

Posted Mon, 10 Jan 2011 11:47:58 GMT by Michael Evans

Evolution measured in decades not centuries

Posted Thu, 15 Sep 2011 16:55:00 GMT by Colin Ricketts

Sex determination in birds

Posted Tue, 29 May 2012 23:01:00 GMT by Dave Armstrong

'Thunderthighs' - a new species of dinosaur discovered

Posted Wed, 23 Feb 2011 12:22:00 GMT by Louise Murray

Mapping Earth's ice from Space

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