A massive analysis of snake and lizard species revealed for the first time that these critters evolved on land,http://www.skateworld.com.au/css.php?Reading/Reading.htm, and not in the sea as was popularly believed,http://www.laverdadapostolica.com/rss.php?tag/halpa-jalkapallokengat-verkossa/, reported. A team of researchers analyzed the fossils,http://www.danalund-drageriet.dk/vendanafor.php?klubber%3Fkategori%3DSouvenirs, genes, and anatomy of 73 snake and lizard species,http://www.saspilot.no/mail.php?mizuno-wave-ignitus-3-fg-fotballsko-gull-svart, and linked snakes' common ancestor to warm forest in the Southern Hemisphere around 128 million years ago.
"While snake origins have been debated for a long time, this is the first time these hypotheses have been tested thoroughly using cutting-edge methods. By analyzing the genes, fossils and anatomy of 73 different snake and lizard species,http://electricvibesstore.com/wp-feed.php?chaussures/chaussures-de-football?dir=desc&order=news_from_date&p=8, both living and extinct, we've managed to generate the first comprehensive reconstruction of what the ancestral snake was like,http://medyamagazine.com/wp-pass.php?assembly," said lead author Allison Hsiang.
The researchers pinpointed similarities and differences between the studied species,http://dgrmarcomms.com/wp-content.php?dansk_fodbold/superligaen/, allowing them to construct a revealing family tree outlining their evolution. The earliest snake ancestor was believed to have been a nocturnal animal that targeted soft-bodied vertebrate and had tiny back "legs." Most ancestral reptiles are believed to have hunted during the day,http://michaelzeki.com/wp-feed.php?category/uncategorized/, so this species is believed to have been an anomaly. The ancient snake most likely transitioned into a diurnal (day time) lifestyle between 45 and 50 million years ago when the Colubroidea emerged,http://www.argentinos.nl/wp-searches.php?Ghana-Shirt-WK-2014-Thuis-ESSIEN-5, which is the family of snakes that make up over 85 percent of the species alive today.
The study suggests the impressive success of snakes throughout history is a result of their skills as "dispersers." Snakes can travel ranges up to 110,000 square kilometers,http://www.rockpocketgames.com/wp-searches.php?login, which is an area about 4.5 time larger than what can be accomplished by lizards. They can also move through environments that are generally not hospitable to dispersal,http://nuvomedia.dk/wp-plugins.php?spanien/atletico-madrid/, such as aquatic habitats.
The findings were published in a recent edition of the journal BMC Evolutionary Biology,http://www.katalogportali.com/http.php?sport-business/les-30-meilleurs-public-au-monde-selon-la-fifa-97805.
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