Origin of life: Which came first? An experiment in recreating primordial proteins solves a long-standing riddle 

What did the very first proteins look like — those that appeared on Earth around 3.7 billion years ago? Prof. Scientists have reconstructed protein sequences that may well resemble those ancestors of modern proteins, and their research suggests a way that these primitive proteins could have progressed to forming living cells.

Source: Origin of life: Which came first? An experiment in recreating primordial proteins solves a long-standing riddle — ScienceDaily

First dinosaur eggs were soft like a turtle’s: New study suggests that hard eggshells evolved at least three times in dinosaur family tree 

New research suggests that the first dinosaurs laid soft-shelled eggs — a finding that contradicts established thought. The study analyzed the eggs of two vastly different non-avian dinosaurs and found that they resembled those of turtles in their microstructure, composition, and mechanical properties. The research also suggests that hard-shelled eggs evolved at least three times independently in the dinosaur family tree.

Source: First dinosaur eggs were soft like a turtle’s: New study suggests that hard eggshells evolved at least three times in dinosaur family tree — ScienceDaily

Super-potent human antibodies protect against COVID-19 in animal tests

Researchers have discovered antibodies in the blood of recovered COVID-19 patients that provide powerful protection against SARS-CoV-2, the coronavirus that causes the disease, when tested in animals and human cell cultures.

Source: Super-potent human antibodies protect against COVID-19 in animal tests: Scientists isolate powerful coronavirus-neutralizing antibodies from COVID-19 patients and successfully test in animals — ScienceDaily

Spectacular bird’s-eye view? Hummingbirds see diverse colors humans can only imagine: Team trains wild hummingbirds to discriminate UV color combinations 

While humans have three color cones in the retina sensitive to red, green and blue light, birds have a fourth color cone that can detect ultraviolet light. A research team trained wild hummingbirds to perform a series of experiments that revealed that the tiny birds also see combination colors like ultraviolet+green and ultraviolet+red.

Source: Spectacular bird’s-eye view? Hummingbirds see diverse colors humans can only imagine: Team trains wild hummingbirds to discriminate UV color combinations — ScienceDaily

Genes May Leave Some People More Vulnerable to Severe Covid-19 

Why do some people infected with the coronavirus suffer only mild symptoms, while others become deathly ill?Geneticists have been scouring our DNA for clues. Now, a study by European scientists is the first to document a strong statistical link between genetic variations and Covid-19, the illness caused by the coronavirus.

Source: Genes May Leave Some People More Vulnerable to Severe Covid-19 | Portside