New genetic research shows humans’ famed ability to adapt our behaviour and develop new tools and techniques has not always been enough to survive when times have grown tough.
Red mitochondria in airway cells become coated with green SARS-COV-2 proteins after viral infection: Researchers discovered that the virus that causes COVID-19 damages lungs by attacking mitochondria.
(Stephen Archer)
COVID-19 causes lung injury and lowers oxygen levels in patients because the SARS-CoV-2 virus attacks cells’ mitochondria. This attack is a throwback to a primitive war between viruses and bacteria.
For many species, human actions are the biggest factor in their evolution.
Andriy Onufriyenko/Moment via Getty Images
In this week’s episode of The Conversation Weekly, we speak with three scientists who study the ways plants and animals evolve in a world dominated by humans.
Legendrea loyezae, a very rare ciliate that lives in oxygen-free sediments of lakes.
James Weiss
Microbes are so tiny humans can’t see them without special equipment. But the discovery of 20 new species will help scientists map the evolutionary tree of life.
Pandemics over the course of evolution have led to the integration of viruses into our genome.
Westend61via Getty Images
Bits of viral genes incorporated into human DNA have been linked to cancer, ALS and schizophrenia. But many of these genes may not be harmful, and could even protect against infectious disease.
Climate change is exposing animals to temperatures outside of their normal limits – a new study has found that insects have a particularly weak ability to adjust.
Extremes of the colour gradient of the Eastern San Antonio frog (Hyla orientalis). On the left, a specimen captured in Chernobyl inside the high contamination zone; on the right, a specimen captured outside the Exclusion Zone.
Germán Orizaola/Pablo Burraco
Taichi A. Suzuki, Max Planck Institute for Biology and Ruth Ley, Max Planck Institute for Biology
As early modern humans spread across the globe, their gut microbes genetically changed with them. Understanding the origins of gut microbes could improve understanding of their role in human health.
An artist’s impression of the Pantolambda bathmodonH Sharpe
Our ancient ancestors didn’t have clothes or houses – but that constant exposure to the sun helped their skin protect itself from the worst sun damage.
Axolotls are a model organism researchers use to study a variety of topics in biology.
Ruben Undheim/Flickr
Human embryos are far more likely to die than come to term, an evolutionary trait seen across species. Laws granting personhood at conception ignore built-in embryo loss, with potentially grave consequences.
The most controversial feature of the New Zealand flora is the plethora of small-leaved trees and shrubs with wiry interlaced branches. Can a synthesis of competing explanations solve this mystery?