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A reticulated giraffe in Samburu National Park, Kenya
Whole-Genome Data Point to Four Species of Giraffe
The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.
Whole-Genome Data Point to Four Species of Giraffe
Whole-Genome Data Point to Four Species of Giraffe

The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.

The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.

speciation, genetics & genomics

Hybrid Animals Are Not Nature’s Misfits
Ashley Yeager | May 1, 2021 | 8 min read
In the 20th century, animals such as mules and ligers that had parents of different species were considered biological flukes, but genetic sequencing is beginning to unravel the critical role of hybridization in evolution.
Genomes Sequenced for Every US and Canada Butterfly
Emily Makowski | Nov 20, 2019 | 2 min read
Researchers analyzed more than 800 species.
Infographic: How the Mitochondrial and Nuclear Genomes Interact
Viviane Callier | Nov 1, 2019 | 3 min read
From regulating each other’s gene expression to encoding different parts of the same proteins, the two genome types in every eukaryotic cell are far from independent.
The Two Genomes in Every Eukaryotic Cell
Viviane Callier | Nov 1, 2019 | 10+ min read
Interactions between mitochondrial and nuclear genomes have further-reaching effects on physiological function, adaptation, and speciation than previously appreciated.
How, If, and Why Species Form
Tim Rogers, Alan J. McKane, and Axel G. Rossberg | Nov 1, 2013 | 4 min read
Biologists have struggled for centuries to properly define what constitutes a “species.” They may have been asking the wrong question—many smaller organisms might not form species at all.
Genome Digest
Dan Cossins | Nov 13, 2012 | 3 min read
What researchers are learning as they sequence, map, and decode species’ genomes
Burgers and Flies
Megan Scudellari | May 1, 2012 | 9 min read
Inspired by Darwin, Mohamed Noor has uncovered the molecular dance by which a single species becomes two.
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