How Social Insects Recognize Dead Nestmates

(PhysOrg.com) -- When an ant dies in an ant nest or near one, its body is quickly picked up by living ants and removed from the colony, thus limiting the risk of colony infection by pathogens from the corpse.

Did the first cells evolve in soda lakes?

Soda lakes, which are dominated by dissolved sodium and carbonate species, could have provided the right conditions for the first cells, according to a new study published in PNAS Nexus.

Iron restriction keeps blood stem cells young, researchers find

As we age, our hematopoietic (blood-forming) stem cells (HSCs) become less able to produce new red and white blood cells and other vital blood components—contributing to chronic inflammation and accelerating the onset of ...

Scientists reveal how first cells could have formed on Earth

Roughly 4 billion years ago, Earth was developing conditions suitable for life. Origin-of-life scientists often wonder if the type of chemistry found on the early Earth was similar to what life requires today. They know that ...

Researcher proposes paradigm shift in enzyme biochemistry

Although you may never have heard of the cytochrome P450 superfamily of enzymes, these proteins play diverse and critical roles in humans through the metabolic processing of drugs, pesticides, fatty acids, fat-soluble vitamins, ...

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