Science
Sunday, October 24, 2021

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Sexuality two heads kissing 

There is no one gene that determines a person’s sexual orientation, but genetics — along with environment — play a part in shaping sexuality, a massive new study shows. Researchers analyzed DNA from hundreds of thousands of people and found that there are a handful of genes clearly connected with same-sex sexual behavior. The researchers say that, although variations in these genes cannot predict whether a person is gay, these variants may partly influence sexual behavior.

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Climate_Marcher

The New York rally was part of a global protest that included events in 156 countries - Afghanistan, the UK, Italy and Brazil among them. In London, the march attracted an estimated 40,000 people, including actress Emma Thompson who likened the threat from climate change to a Martian invasion.  Some 30,000 people marched in Melbourne, Australia. Demonstrators urged Prime Minister Tony Abbott to take action, citing fears that climate change could lead to more bushfires and droughts.Organizers said more than 25,000 marched in Paris and  15,000 people marched in Berlin, urging world leaders to recognize climate change as a top pressing problem.

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  purple octopus

Octopuses have three hearts, parrot-like beaks, venomous bites, and eight semi-autonomous arms that can taste the world. They squirt ink, contort through the tiniest of spaces, and melt into the world by changing both color and texture. They are incredibly intelligent, capable of wielding tools, solving problems, and sabotaging equipment. As Sy Montgomery once wrote, “no sci-fi alien is so startlingly strange” as an octopus. But their disarming otherness doesn’t end with their bodies. Their genes are also really weird.

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 Turtle swiming

Humans are transforming Earth’s natural landscapes so dramatically that as many as one million plant and animal species are now at risk of extinction, posing a dire threat to ecosystems that people all over the world depend on for their survival, a sweeping new United Nations assessment has concluded. The 1,500-page report, compiled by hundreds of international experts and based on thousands of scientific studies, is the most exhaustive look yet at the decline in biodiversity across the globe and the dangers that creates for human civilization. A summary of its findings, which was approved by representatives from the United States and 131 other countries, was released May 6th, 2019 in Paris.

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 human heart animated 3d model 2

A team of Tel Aviv University researchers revealed the heart, which was made using a patient’s own cells and biological materials. A team of Israeli researchers has “printed” the world’s first 3D vascularized engineered heart. On April 15, 2019 a team of Tel Aviv University researchers revealed the heart, which was made using a patient’s own cells and biological materials. Until now, scientists have successfully printed only simple tissues without blood vessels.