
Former researcher | Now freelance science writer, 👻 writer, & amateur wildlife 📸 | Words in @MRSBulletin, @NatureCustom, and more. He/Him. 🏳️🌈 🖤 Ally.
San Francisco, CA
Joined August 2017
- Tweets7K
- Following2.8K
- Followers1.2K
- Likes13.2K
Pinned Tweet
Sooo today I got to watch a #coyote take a nap in Golden Gat Park, and it was GLORIOUS
Stephen Riffle, Ph.D. retweeted
Spreckels Lake, Golden Gate Park, circa 1908
Picked up a couple of early prints recently, kids with model boats. Though it was initially filled with overflow water from the Dutch Windmill, I think the lake was specifically built for model boating, opening in 1904. #sfhistory
Fun fact, PCR machines use the same type of device—in the form of Peltier blocks—to control denaturation, amplification, and annealing temperatures.
Japanese scientists who designed a freezer that works in the deep sea have successfully frozen an orange far below the waves. The next step is to improve the freezing time and eventually test the device on deep-sea organisms. 🍊
By @AnnieRothNews.
l8r.it/cVek
My camera and mind would break from excitement, primal fear, and awe.
Ok, who had #cougar on their animal tidepool bingo card?! Sunday morning (7/16) a cougar was spotted hunting on #HaystackRock in #CannonBeach, #Oregon. It was a surprise for everyone 😱, especially photographer Andy Woo who captured these pics. #mountainlion #ocean #oregoncoast
Great article about @pchrysafis and the important work he does for rancher-predator coexistence. Spread the word! theguardian.com/us-news/2023…
Stephen Riffle, Ph.D. retweeted
Helen Marshmallow Thomsett is normally a perfect sweet angel but the other day she gave us one for the blooper reel 😂
(Juliet’s okay dw)
Oh the things you’ll see above the San Francisco skyline when you’ve got your trusty hiking partners, Ruth Barker Ginsburg and @KarlTheFog
Stephen Riffle, Ph.D. retweeted
while on assignment for @InsideNatGeo @NatGeo i spotted two of my faves: secretary bird and black-backed jackal 😍
Despite what the sign says, that is, in fact, not a person.

ALT A coyote can be seen standing on a hillside surrounded by low cut grass and overgrown oak trees, each sporting different shades of green. In the foreground is a pedestrian crossing sign with an arrow pointing 45 degrees down and to the left. Though in the background, the coyote appears to be right where the arrow is pointing.
Stephen Riffle, Ph.D. retweeted
So this is a thing
Chris & I have been working on this book project for several years
Apparently it's available for pre-order!
Wonderful work from phenomenal contributors in this book! 💜
#UrbanConservation #UrbanEvolution #UrbanEcology #UrbanWildlife
global.oup.com/academic/prod…
On the lookout for squirrels and rats among bustling bushes. Just a reminder, you can find me now on a few other platforms, gonna start slowing my posting here, so look for Eyaspectre wherever ya'll end up!
Stephen Riffle, Ph.D. retweeted
Meanwhile our conservation dog Barley is a carnivore generalist, so he finds everything from coyote to puma to bear to weasel! This is helpful in areas of lower density, but means we put Barley away and grab Scottie when coyotes are super abundant.
Gonna start transitioning to other platforms (ones where you can Post without supporting an unabashed transphobe). Would love to see my community over there!
🧵1/10 Don't Ditch Your Pet In The Park: A Series
(Trigger Warning: Predation)
A follow on to my last post, showing a coyote casually pursuing and catching a domestic rat.
🧵9/10 Don't Ditch Your Pet In The Park: A Series
(Trigger Warning: Predation)
Believe it or not, the rat did seem to survive. The coyote played with its food too much—eventually a passerby accidentally spooked the coyote, enabling the rat a window of time to escape.






























