#evolutionary-biology

#evolutionary-biology

Hundreds of fossils uncovered in southern China's province of Yunnan reveal that at least some of the life-forms scientists had thought arose in the Cambrian period were alive and thriving millions of years earlier, in an era known as the Ediacaran period.

The fighting hypothesis proposes that there is a so-called frequency-dependent maintenance of left-handedness. The main idea is that over the tens of thousands of years of human evolution, left-handers did have an advantage in fights due to a surprise effect. This gives them an evolutionary survival benefit since they win more fights.

In this tree of life, The Straits Times examines each Pokemon character's closest proxies in the real world, uncovering the scientific concepts hidden in their designs. Beyond the original species, we delve into creatures from different dimensions and eras that were introduced in later versions of the game.

The vast majority of animal species on this planet lay eggs, most insects, most fish, most amphibians, most reptiles, all birds, and even a few mammals lay eggs to reproduce. And if you go back far enough, you can see that our ancestors laid eggs for millions of years too.

We think that in this early deuterostome, the median eye contained both ciliary and rhabdomeric cells. As a result, both cellular lineages were incorporated into a single, ancient, cyclopean eye, which later evolved into the vertebrate eyes.

The study's authors researched 96 peer-reviewed studies documenting SSB to compile one of the most comprehensive datasets for primates to date. The study found that SSB are a "persistent and integral component of primate social [practices]." In fact, the prevalence of SSB across a variety of closely related primate species - and over several lines of descendants - "indicates a deep evolutionary root or multiple independent evolutionary origins," the study's authors wrote.

Language likely evolved as a crucial tool to facilitate the care of vulnerable infants, requiring cooperative parenting and communication among groups in early human societies.

Sarah Blaffer Hrdy proved that females were neither passive nor monogamous by default, demonstrating that female colobinae employed sexual counter-strategies to obscure paternity.

'If a female doesn't want to mate, the male can't do anything about it. That alone gives her power.'

Researchers have described proteins that they say are among the most ancient ever sequenced, pushing back the genetic fossil record to more than 20 million years ago.

The website took on a life of its own, showcasing the ongoing evolution and impact of the UCSC Genome Browser, vital for genomic research.

In mammals, good dads are the exception. Male leopards, bears, or cats have a habit of toddling off after mating and leaving the mothers to raise the kids.

Ilardo's research highlights how the Haenyeo's adaptations, both physiological and genetic, enable them to thrive in harsh diving conditions.

Stimulants tap into core brain functions that evolved to enhance survival, offering short-term benefits but requiring a cautious approach due to widespread use.