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biology

Life

How hagfish slime gets its incredible clogging ability

Fibrous protein threads hold together the mucus in hagfish slime, giving it up to 1000 times the clogging power of common thickeners like xanthan gum when dissolved in water

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Life

City life may help Darwin's finches survive bloodsucking flies

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Beetle daisy (Gorteria diffusa), Springbok, Namaqualand, South Africa - Image ID: C119J6 (RF)

Life

How daisies make deceptive petals that look like female flies

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The slime mould Dictyostelium discoideum is used to study the origins of multicellularity

Life

How did multicellular life evolve? Algae and yeast give some hints

Comment

Killer whales off San Juan Islands

Life

Orcas in the North Pacific may be dying out due to inbreeding

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Dusky gregory farmerfish Stegastes nigricans

Life

Algae-farming fish help coral reefs bounce back from bleaching events

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A bald eagle is tested for avian flu

Life

Bird flu cases are expected to surge as birds migrate in coming weeks

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Orca seen foster parenting a pilot whale calf for first time

Life

Orca seen foster parenting a pilot whale calf for first time

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Male XY chromosomes, artwork. The Y chromosome (right) is found in males and is shorter than the X chromosome (upper left). The latter has been labelled with a white glow that can represent a genetic mutation. An individual's sex is determined by the presence or absence of the Y chromosome. Women are XX, while men are XY. Chromosomes are a condensed form of the genetic material DNA (deoxyribonucleic acid), which condenses into chromosomes during cell replication. Each chromosome has two identical strands (chromatids), aligned in parallel and joined at the centromere.

Health

Mice have been born from eggs derived from male cells

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TXBTRF 3d rendered medically accurate illustration of amyloid plaques on a alzheimer nerve cell

Health

Restoring the brain’s mitochondria could slow ageing and end dementia

The discovery that faulty metabolism is at the root of many brain diseases suggests a surprising transplant could be the way to protect our brains from the ravages of ageing

Features

Life

Weird vocal fry trick helps orcas and dolphins hunt prey in the deep

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Life

Giant insect thought extinct in eastern US found in a Walmart

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Video

Inside Falkor (too), the ship searching for life at hydrothermal vents

Video

Life

High-tech research ship ready to seek new life at hydrothermal vents

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