Wednesday, 17 October, 2018

The Lizards With Lime-Green Blood

We Still Don't Know Why These Lizards Have Lime-Green Blood Lizards' Green Blood Evolved Four Times
Elijah Vega | 17 May, 2018, 17:13

They found that green blood in these lizards likely evolved four different times, and that all of the green-blooded lizards were probably descended from a red-blooded ancestor. But evolutionarily, the trait isn't so odd. Rodriguez, Austin and colleagues investigated the evolutionary history of green blood, which evolved in several species of New Guinea lizards.

Scientists are now trying to understand how these lizards might benefit from blood that's green.

An earlier study from the University of Texas, US, found that Prasinohaema plasma contains a biliverdin concentration approximately 40 times greater than that found in jaundiced humans.

"There's so much green pigment in the blood that it overshadows the brilliant crimson coloration of red blood cells", coauthor Chris Austin, a biologist at Louisiana State University, tells NPR. "The bones are green, the muscles are green, the tissues are green, the tongue and mucosal lining is green". This sample came from the green-blooded lizard Prasinohaema prehensicauda, which lives in the highlands of New Guinea.

For the study, they analyzed 51 skink species living in Papua New Guinea.

The bile pigments, known as biliverdin and bilirubin, are toxic by-products of red blood cell catabolism - the process by which enzymes breakdown large molecules into smaller components. "Ongoing work with the Austin lab examines the potential effect of the green blood pigment on malaria and other parasites that infect these lizards", said co-author Susan Perkins, curator and professor at the Sackler Institute for Comparative Genomics and the Division of Invertebrate Zoology, American Museum of Natural History.

Fiscal reform initiative is underway - Finance Ministry
The Goods and Services Tax (GST) in Malaysia will be reduced from the existing rate of 6% to 0% starting from 1 June 2018. The ministry said expenditure reduction will begin with rationalisation, efficiency measures and reduction in wastages.

If that turns out to be true, the question is why some lizards would find it easier to be green.

Austin initially thought that the buildup of biliverdin might deter predators by making the lizards distasteful.

The researchers figured that the greens in these lizards does not arise as a single cluster but are scattered among reds. Multiple origins of green blood in New Guinea lizards.

"Our current hypothesis is that this novel and toxic physiology might have evolved to reduce or preclude the infection of blood parasites such as malaria", Austin said.

This basic research might someday lead to a better understanding of both this disease and jaundice, says Rodriguez. The fact that green blood emerged independently four times in separate lineages suggests that it must have had an adaptive value, but the team isn't quite sure what that value is yet. Slightly elevated levels of bile pigments in other animals, including insects, fish and frogs, have played potentially positive roles in these animals.

Recommended

LG G7 ThinQ Starts Rolling Out Globally Starting with South Korea LG G7 ThinQ Starts Rolling Out Globally Starting with South Korea Reports about the upcoming LG phone have been increasing steadily, suggesting the company could unveil it in a month or so. The primary 16-megapixel camera uses a f/1.6 lens with optical image stabilization and phase detection autofocus.

Did you notice this SRK song in Deadpool 2? Did you notice this SRK song in Deadpool 2? The latest news from the entertainment industry is rather a treat for all moviebuffs who follow both Hollywood and Bollywood. Deadpool 2 is ready for release on Friday and the insane superhero film has an Indian connection especially with Bollywood.

Rupee rebounds 27 paise vs Dollars Rupee rebounds 27 paise vs Dollars In the forex markets on Wednesday, the rupee opened lower at 68.14 and slipped further to a fresh multi-month low of 68.15 in early trade.

Irrfan Khan back on social media, shares Karwaan poster on Twitter Irrfan Khan back on social media, shares Karwaan poster on Twitter He moved to London for his treatment and since then there has been no official statement from the actor or his family. Khan wished his Karwaan (2018) co-stars Dulquer Salmaan and Mithila Palkar for the release of the film on 10 August.

Claim From Italy: Manchester United Closer To Alex Sandro Signing Claim From Italy: Manchester United Closer To Alex Sandro Signing Conte will nearly certainly leave Stamford Bridge this summer and a new manager will come to take over to Chelsea . Romelu Lukaku missed the end of the season run-in with an ankle injury.

Jose Mourinho faces obstacle to secure Leonardo Bonucci deal Jose Mourinho faces obstacle to secure Leonardo Bonucci deal It would be beneficial to have a player of Bonucci's huge experience and quality in the United back line. Let us know in the comments section below.

RJD To Meet Governor To Form Govt In Bihar RJD To Meet Governor To Form Govt In Bihar The party's state president HD Kumaraswamy attacked Prime Minister Narendra Modi's government for "demolishing" the democracy. If they have allowed the single-largest party to come to power in Karnataka, then they should allow that here as well.

Analysts Ratings on: Enbridge Energy Management LLC (EEQ) Analysts Ratings on: Enbridge Energy Management LLC (EEQ) Traders often add the Plus Directional Indicator (+DI) and Minus Directional Indicator (-DI) to identify the direction of a trend. Advancing issues outnumbered declining ones on the NYSE by a 2.30-to-1 ratio; on the Nasdaq, a 2.62-to-1 ratio favored advancers.

Moto G6 with Custom ZUI Skin Launched as Moto 1S in China Moto G6 with Custom ZUI Skin Launched as Moto 1S in China While there are no changes in terms of specifications and design, the stock Android UI is replaced with the custom ZUI skin. Finally, the smartphone has a 3000 mAh Li-ion non-user replaceable battery with Turbocharging support via USB type C port.

Exercise does not prevent or delay onset of dementia Exercise does not prevent or delay onset of dementia Indeed, patients who participated in the exercise programme showed slightly worse scores than those who hadn't exercised. But recent reviews of trials of exercise training in people with dementia have shown conflicting results.

Harmanpreet Kaur, Smriti Mandhana to lead teams for Women's T20 Challenge Harmanpreet Kaur, Smriti Mandhana to lead teams for Women's T20 Challenge Mandhana and Harmanpreet will lead IPL Trailblazers and IPL Supernovas respectively in the upcoming Women's T20 Challenge Match. There will be a host of Indian and worldwide stars that will take the field for the Women's T20 Challenge match in Mumbai .

Monzo now supports Apple Pay in its banking services Monzo now supports Apple Pay in its banking services Monzo , the United Kingdom challenger bank, has finally added Apple Pay to its mobile-only current account. It's not just for your iPhone though - it'll also work with your Apple Watch, iPad or MacBook Pro.

Builders are more confident this month says NAHB Builders are more confident this month says NAHB In addition to higher materials costs, builders have been struggling to find the skilled workers they need to start new projects. Homebuyers have been snapping up newly built houses as the economic outlook has continued to improve in recent months.

DA Davidson Weighs in on TripAdvisor's Q2 2018 Earnings (TRIP) DA Davidson Weighs in on TripAdvisor's Q2 2018 Earnings (TRIP) On Thursday, February 15 the rating was maintained by SunTrust with "Hold". ( NASDAQ : TRIP ) rating on Thursday, September 28. The sale was disclosed in a document filed with the Securities & Exchange Commission, which is available through this link.

Research Analysts Set Expectations for Pioneer Energy Services' Q2 2018 Earnings (PES) Historical volatility refers to the price fluctuations exhibited by the underlying asset (such as stock) over time. When we look at the Volatility of the company, Week Volatility is at 7.19% whereas Month Volatility is at 7.61%.