Evolutionary Biology

Five morphs of Poecilia parae—from top: melanzona yellow, melanzona blue, melanzona red, parae, immaculata—and a female (bottom) of the same species

Fish Species’ Y Chromosomes Diverged Even Without Recombination

Opening of Leang Panninge cave in Indonesia

7,200-Year-Old Skeleton Offers Clues to Early Human Migration

A young Maurice Taieb looks at a fossil.

Maurice Taieb, Geologist Who Discovered “Lucy” Site, Dies at 86

Uncovering Ancient Residual DNA

Uncovering Ancient Residual DNA

A woman sits with a camera and recording equipment looking up at a tree full of bats (unseen).

Baby Talk: Bat Pups Babble Like Human Infants

front-facing photo of a western diamondback rattlesnake against a black background

Snakes on a Plain

3 by 5 grid of black and white photos of indigenous Filipino portraits

Indigenous Filipino Group Has Highest Known Denisovan Ancestry

Plant cryptospore fossil found in 480 million-year-old Australian rock

Discovered: Fossilized Spores Suggestive of Early Land Plants

tibetan mastiff with ghostly wolves in the background

The Extinct Species Within

 Close-up view of the drapery hosting most of the red stains.

65,000-Year-Old Cave Markings Made by Neanderthals: Study

A purple bulge of microbes on the bottom of a lake

Longer Days Led to Oxygen Buildup on Early Earth: Study

A microscopy image of several endometrial stromal fibroblasts

Gene Offers Clue to How Human Labor Starts

Trending

Photo of John Calhoun crouches within his rodent utopia-turned-dystopia

Universe 25 Experiment

Illustration of a hole in the shape of a dollar sign on a blue background. One character is falling into the hole at the bottom of the “S” while another individual is holding another up at the top of the “S”. The image represents the absence of funding for researchers in biotech with the cancellation of the SBIR/STTR program.

The Federal Government’s Research Innovation Lifeline Has Gone Dark

An illustration of an in vitro fertilized embryo, which researchers recently used to study maternal aneuploidy

Genetic Basis of Aneuploidy, Which Often Causes Pregnancy Loss, Revealed

A mouse aorta with immunofluorescence tagging of various molecules, emphasizing the close connection between vasculature and fat.

How Fat Type Shapes Hypertension Risk

Multimedia

Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Illustration of a developing fetus surrounded by a clear fluid with a subtle yellow tinge, representing amniotic fluid.
January 2026

What Is the Amniotic Fluid Composed of?

The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus.

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Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

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Skip the Wait for Protein Stability Data with Aunty

Skip the Wait for Protein Stability Data with Aunty

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Products

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Nuclera eProtein Discovery System installed at leading Universities in Taiwan

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