A male and female Chiriqui harlequin frog (<em>Atelopus chiriquiensis</em>) photographed in 2010. The species was declared extinct in 2019.
| 10 min read
Getting it wrong can harm the very creatures that scientists are trying to protect.

IUCN

Illustration of creatures from today&rsquo;s crisis

Infographic: A Look at the Big Five Mass Extinctions

leatherback sea turtle making its way across a beach

Fifteen-Year Project Quantifies Threat to Reptiles

Amphibian Conservation Champion Phil Bishop Dies

Conservation Biology Icon Georgina Mace Dies at 67

elephant herbivore extinction risk predator omnivore iucn red list

Risk of Extinction Is Greatest for Large Herbivores: Study

Poisoning Suspected in Recent Hooded Vulture Deaths

IUCN Red List Update Signals Hope for Gorillas

Many Species of British Mammals at Risk of Extinction

North American Ash on Brink of Extinction

IUCN Declares Giraffes Vulnerable to Extinction

Vultures in Africa Threatened

One-Third of Cactus Species Threatened

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Sex Determination: It’s in the Genes—Sometimes

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Universe 25 Experiment

A group of large animals, some of which are being studied for cancer resistance genes and proteins, are pictured, including a bison, an elephant, a giraffe, a manatee, a zebra, and a whale.

Peto’s Paradox: How Gigantic Species Evolved to Beat Cancer

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An Anti-Malarial Drug Could Ameliorate PCOS Symptoms

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Olink® Reveal: Accessible NGS-based proteomics for every lab

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Minimizing to Maximize Measurement Accuracy

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March 2025, Issue 1

How Do Embryos Know How Fast to Develop

In mammals, intracellular clocks begin to tick within days of fertilization.

View this Issue
Discover the history, mechanics, and potential of PCR.

Become a PCR Pro

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Genetic Insights Break Infectious Pathogen Barriers

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A photo of sample storage boxes in an ultra-low temperature freezer.

Navigating Cold Storage Solutions

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The Immunology of the Brain

The Immunology of the Brain

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Olink® Reveal: Accessible NGS-based proteomics for every lab

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Zymo Research Launches the Quick-16S™ Full-Length Library Prep Kit