A cross section of the pistil of <em >Arabidopsis thaliana&nbsp;</em>plant. Pollen grains are labeled with fluorescent markers and sit at the top of the structure. Fluorescently tagged pollen tubes penetrate the plant&rsquo;s ovary where the ovules (small, curved structures) are located.
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A new method enables clear visualization of the dynamic changes during angiosperm reproduction.

sexual reproduction

A gametophyte of the brown alga <em>Desmarestia dudresnayi</em> that has both male and female reproductive structures

Meet the Algae That Went from Male/Female to Hermaphroditic

Ribbon weed meadow in Shark Bay, Western Australia

World’s Largest Organism Discovered Underwater

illustration of purple mitochondrion within a cell

Rogue Mitochondria Turn Hermaphroditic Snails Female: Study

A headshot of Matthew Gage

Evolutionary Ecologist Matthew Gage Dies at 55

Women’s Cervical Mucus Prefers Some Sperm Over Others 

funnel web spider courtship

Image of the Day: Spider Sex

Image of the Day: Self-Insemination

Male Fruit Flies Take Pleasure in Having Sex

Why Paternal Mitochondria Aren’t Passed On to Offspring

Review: The End of Sex

Laugh, Then Think: The Ig Nobels

Fending Off Infection in Future Generations

How to Make a New Species

Drug for Low Sex Drive in Women?

Unique Frog Breeding

A Tale of Two Genitals

Week in Review: June 30–July 4

Capsule Reviews

Speaking of Sex

Carnal Knowledge

Trending

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

Universe 25 Experiment

Green clusters of moss on a petri dish against a white background.

Moss Medicines: The Next Revolution in Biotech?

A watercolor illustration of the human brain.

New Neurons Continue to Form in Adult Human Brains

An obese mouse on the left compared with normal control on right.

How Cysteine Depletion Drives Cells to Burn Fat 

Multimedia

Screening 3D Brain Cell Cultures for Drug Discovery

Screening 3D Brain Cell Cultures for Drug Discovery

A large number of stylized antibodies

The Holy Grail Hunt in De Novo Antibody Design

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July Digest 2025
July 2025, Issue 1

What Causes an Earworm?

Memory-enhancing neural networks may also drive involuntary musical loops in the brain.

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Screening 3D Brain Cell Cultures for Drug Discovery

Screening 3D Brain Cell Cultures for Drug Discovery

Explore synthetic DNA’s many applications in cancer research

Weaving the Fabric of Cancer Research with Synthetic DNA

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Illustrated plasmids in bright fluorescent colors

Enhancing Elution of Plasmid DNA

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An illustration of green lentiviral particles.

Maximizing Lentivirus Recovery

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Products

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Sino Biological Sets New Industry Standard with ProPure Endotoxin-Free Proteins made in the USA

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Introducing the iQue 5 HTS Platform: Empowering Scientists  with Unbeatable Speed and Flexibility for High Throughput Screening by Cytometry

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Vanderbilt Selects Parse Biosciences GigaLab to Generate Atlas of Early Neutralizing Antibodies to Measles, Mumps, and Rubella

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Shift Bioscience proposes improved ranking system for virtual cell models to accelerate gene target discovery