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Conservation biologist @Smithsonian herpetology, amphibian, disease, environment, native plants, wildlife, photography, science, nature, earth optimism.
Brian Gratwicke









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I'm honored to serve as a judge on the ASA's new amphibian photography contest. We hope to raise some funds to support ASA and feature great work from around the world. Please enter your shots.. www.amphibians.org/photography-... Entry fee for up to 10 images = $25 Grand prize = $1000.
1mo
Dedicated to the worldwide conservation of amphibians and their habitats.
www.amphibians.org
Amphibian Survival Alliance
Brian Gratwicke
A new unknown disease has appeared in salamanders causing abnormal skin shedding and death. Scientists are rushing to understand how the disease is spread.
2mo
It is, finally, the right season for this Larkin poem.
“If you suddenly and unexpectedly feel joy, don’t hesitate. Give in to it. … notice it in the instant when love begins. … Anyway, whatever it is, don’t be afraid of its plenty. Joy is not made to be a crumb.” ~Mary Oliver, Don't Hesitate (2010) Halictina bee on Hookers Balsamroot
Bad news Monday 🧪 RIP Peter Raven. news.mongabay.com/2026/04/pete... news.mongabay.com/2007/03/biod... is a good interview from several years back. 🧪
21d
2mo
An unidentified disease in salamanders rings alarm bells
wildlife.org
1mo
Researchers rush to understand deadly new disease
Life on Earth is often described as a web, but for much of modern science it was catalogued as a ledger: names, specimens, distributions, relationships drawn in careful lines. Over the course of the 2...
news.mongabay.com
Peter Raven, botanist and advocate for biodiversity, has died, aged 89
Bloodroot and hepatica fleeting harbingers of spring… my favorite native flowers
Scientist and medtech entrepreneur J. Craig Venter published the first bacterial genome ever decoded in 1995. The result heralded a new age of discovery for genetics
The Wildlife Society
Scorpions have stingers fortified with zinc and manganese at the tip of the needle.... www.ttownmedia.com/news/nationa...
very interesting overview of the current state of trade in amphibians for pets in the USA from Viadanna et al. 👏https://www.sciencedirect.com/science/article/pii/S2352513426002358
2mo
1mo
Cool paper from Jeckel et. Al explaining how some dart frogs are spicier than others… 😝 royalsocietypublishing.org/rspb/article...
1mo
1mo
2mo
🍁 Alex Smith 🍁
Zamira Rahim
'Swashbuckling' geneticist and human genome decoder J. Craig Venter dies at 79
Scientist and medtech entrepreneur J. Craig Venter published the first bacterial genome ever decoded in 1995. The result heralded a new age of discovery for genetics
www.scientificamerican.com
The distribution and scale of metal enrichment among the deadly arthropods' weapons have been discovered for the first time.
www.ttownmedia.com
Scientists discover scorpions’ sting fortified with metal
The amphibian pet trade is growing in the U.S. While there are anecdotal reports of an increasing emphasis on selling captive-bred animals, millions o…
www.sciencedirect.com
Market trends and conservation challenges in the U.S. amphibian pet trade
Brian Gratwicke
Scientific American
Marianne Denton
Experimental evidence supports gradual evolution of alkaloid sequestration in poison frogs
Abstract. The evolution of alkaloid sequestration and modification in poison frogs provides an opportunity to explore the emergence of complex traits, part
royalsocietypublishing.org
Brian Gratwicke
Brian Gratwicke
Brian Gratwicke