3D illustration of a reddish pink eukaryotic cell showing its inner contents, including a red and pink nucleus, purple endomembrane system, and pink and red vesicles.
| 3 min read
As eukaryotic cells started to form, eukaryotic traits may have emerged in early cells about one billion years before the introduction of the mitochondria.

phylogeny

<em >Lymantria&nbsp;</em>species make ultrasonic, mechanical rasping noises when they hear bats nearby.&nbsp;

Many Moths Speak Up to Ward Off Bats

The structure of a biological cell (macro)

The Long and Winding Road to Eukaryotic Cells

Illustration showing the path result of Eukaryogenesis

Infographic: Evolutionary Leaps Leading to Modern Eukaryotes

Tree with many scattered branches.

Scientists Resurrect Ancient Rubiscos to Understand Their Evolution

Blue Whales - Sri Lanka April 2012

The Evolutionary Shaping of Modern Whales

Ad&eacute;lie penguin family

Penguins Are Among the World’s Slowest-Evolving Birds: Study

A yellow-orange, translucent artist&#39;s rendition of a yunnanozoan, an ancient wormlike fish, that highlights the arches that make up its cartilage skeleton.

This Simple Fish May Have Been One of the First Vertebrates

scanning electron microscope image of clawlike microscopic organisms on a smoother surface

Phyla of Tiny Filter Feeders Find a New Spot on the Tree of Life

Illustration of a DNA virus sneaking genetic material into a host’s nucleus

Infographic: Possible Mechanisms of Gene Transfer in Eukaryotes

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Universe 25 Experiment

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q.e.d: An AI Tool for Smarter Manuscript Review

An enveloped virus forms.

Where Do Viruses Come From?

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Why Do Dogs Love Peanut Butter?

Multimedia

Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

Merck
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

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December digest cover image of a wooden sculpture comprised of multiple wooden neurons that form a seahorse.
December 2025, Issue 1

Wooden Neurons: An Artistic Vision of the Brain

A neurobiologist, who loves the morphology of cells, turns these shapes into works of art made from wood.

View this Issue
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

Merck
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

MilliporeSigma purple logo
Abstract wireframe sphere with colorful dots and connecting lines representing the complex cellular and molecular interactions within the tumor microenvironment.

Exploring the Inflammatory Tumor Microenvironment 

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A Comprehensive Guide to Next-Generation Sequencing

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BRANDTECH® Scientific Announces Strategic Partnership with Copia Scientific to Strengthen Sales and Service of the BRAND® Liquid Handling Station (LHS) 

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Enter Our 2026 Top Innovations Contest

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Biotium Expands Tyramide Signal Amplification Portfolio with Brighter and More Stable Dyes for Enhanced Spatial Imaging

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LabVantage Solutions Awarded $22.3 Million U.S Customs and Border Protection Contract to Deliver Next-Generation Forensic LIMS