Dr. Drew harvell
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drewharvell.bsky.social
Dr. Drew harvell
@drewharvell.bsky.social
1.9K followers 320 following 98 posts
Scientist, Author, speaker with a fondness for invertebrates. Books:
🦑 A Sea of Glass
👩‍🔬 Ocean Outbreak
🐙The Ocean's Menagerie
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drewharvell.bsky.social
SPINELESS! Looking forward to Spineless lightening talks panel with @seattleaquarium.bsky.social. Its an online evening, so all are welcome! There will be nudibranchs and seastars and octopus!

#marinelife #invertebrates #nudibranchs #seastars #octopus #spineless
May 8, 2025 at 2:33 PM
drewharvell.bsky.social
Love the write up for Ocean's Menagerie in Yale Climate Connections Top 12 Earth Month Books @vikingbooks.bsky.social
yaleclimateconnections.org/2025/04/12-b...
April 24, 2025 at 5:27 PM
drewharvell.bsky.social
Happy #EarthDay and Release Day! #BookTalk tonight and The Times London Book of the Week!
“The #OceansMenagerie a marine smorgasbord of the spineless. "...she has discovered is magic and bewildering, astonishing creatures that challenge our idea of animalhood"
www.thetimes.com/culture/book...
April 22, 2025 at 2:33 PM
drewharvell.bsky.social
LitHub voted my book in their top-10 non-fiction! "The strange creatures of the deep ocean are endlessly fascinating, and Drew Harvell’s fascinating exploration of the depths of their wondrousness is as gripping as you’d hope."
lithub.com/from-the-nig...

#marinelife #invertebrates #nudibranch
The Ocean's Menagerie published with @vikingbooks.bsky.social See my website DrewHarvell.com for blogs related to the book
March 30, 2025 at 5:16 PM
drewharvell.bsky.social
#Nudibranch superpowers! I'm updating the blog on my website with tidepool meanderings, starting with nudibranchs. Here is my Monterey #tidepool favorite, Hopkin's Rose. It uptakes its color from its prey, Rosy Bryozoan.

drewharvell.com/2025/03/22/f...

#marinelife #invertebrates #nudivember
March 23, 2025 at 3:37 PM
drewharvell.bsky.social
Loved doing this interview about captive breeding and conservation of #sunflowerstars with the sunflower star aquarist @montereyaq.bsky.social and a chat about my upcoming book, The Ocean's Menagerie.
www.instagram.com/p/DGv7c5ayP7Q

#marinelife #sunflowerstar #conservation #ocean #invertebrate
Sunflower star maintained for conservation breeding at Friday Harbor Labs by Dr Jason Hodin Sunflower star baby grown at Friday Harbor Labs by Jason Hodin
March 3, 2025 at 11:02 PM
drewharvell.bsky.social
Grazing by small #herbivores associated with a 29% increase in eelgrass #disease, contributing to huge losses in meadow areas from San Diego to Alaska.Nice story from @cornellcals.bsky.social summarizing our #eelgrass double-header in Ecology; Dr Graham cover photo!
news.cornell.edu/stories/2025...
Cover photo of Ecology that goes with Dr Olivia Graham article: Invertebrate Herbivores Influence Seagrass Wasting Disease Dynamics that describes key lab experiments showing how herbivore grazing creates open wounds that facilitate Labyrinthula zosterae infections
February 15, 2025 at 5:06 PM
drewharvell.bsky.social
The opalescent nudibranch eats small anemones and hydroids; it uptakes prey's stinging cells for its defense. The Doriopsilla is one of several "lemon #dorids" here, and eats sponges. The long-armed #brittlestar reminds me of this #Blashka model (Ophionereis annulate) made in glass 180 years ago.
Doriopsilla, a dorid nudibranch Long-armed brittle star (Amphiodia occidentalis Ophionereis annulata, a glass brittle star, created by the Blashkas 180 years ago. photo courtesy of Cornell University Blaschka Gallery.
February 9, 2025 at 2:21 AM
drewharvell.bsky.social
Great low tide at #HopkinsMarineStation shared with our Waves of Convergence #Stanford workshop. #Nudibranchs (Hermissenda and Doriopsilla), and Long-arm #brittlestar
February 9, 2025 at 2:21 AM
drewharvell.bsky.social
#Herbivores facilitate disease spread in #eelgrass. So proud of Team Eelgrass lead by Dr Olivia J Graham. And cool cover photo! esajournals.onlinelibrary.wiley.com/doi/full/10....

#marinelife #seagrass #herbivores #vector #isopods #invertebrates #diseaseecology #disease
February 7, 2025 at 6:14 PM
drewharvell.bsky.social
Galleys for The Ocean’s Menagerie! The #OceansMenagerie, about #SpinelessSuperpowers, releases Earthday 2025. #sponges, #corals, #nudibranchs, #seastars, #giantclams and #octopus! Andrea Dingeldein diagrams for coral chapters.

#marinelife #invertebrates #tidepools #diving #scicom #artandscience
Drew holding galleys for The Ocean's Menagerie The chapter opening art for The Coral's Castle. by Andrea Dingeldein, The Local Naturalist. The chapter opening art for The Seafan's Ancient Defenses chapter. Art by Andrea Dingeldein, The Local Naturalist
February 3, 2025 at 4:42 PM
drewharvell.bsky.social
More Red under Rocks #marinelife in #Tidepools: Blood star (Henricia sp), crab claws, Speckled Triopha #nudibranch (Triopha maculata), brittle star
February 1, 2025 at 5:50 PM
drewharvell.bsky.social
Seeing Red under Rocks on my #spineless meanders: #batstar rainbows, dwarf red sea cucumber (Lissothuria nutriens), red #sponge with purple sea urchins and Ophlitaspongia red sponge with red Rostanga pulchra #nudibranch and red egg mass (colored w sponge pigment)

#marinelife #intertidal #invert
February 1, 2025 at 5:45 PM
drewharvell.bsky.social
In #tidepools today at the #GreatTidePool we also saw 2 different yellow #nudibranchs, Peltodoris and a new one for me, Doriopsilla, both sponge predators. And a brooding anemone with a big baby, and an adorable flat #crab with huge claws. And a Hopkins Rose nudibranch.
#MarineLife #Invertebrates
Doriopsilla, with fluffy white gills. A sponge predator Peltodoris, sometimes called the lemon nudibranch, a sponge predator and its sidekick, the clown nudibranch, that eats bryozoans. The brooding anemone, Epiactis prolifera. You can see one large baby anemone brooded on the column and also a much smaller one. They can brood many babies at once. This is such a flat beautiful crab and I don't know its name. The claws! Anyone help with this?
January 15, 2025 at 1:39 AM
drewharvell.bsky.social
Low-tide at #GreatTidePool. #Ricketts and #Steinbeck were right about the richness of #invertebrates here! Lots today starting with a flat crab, a two-spot #octopus, brooding anemone and 4 #nudibranchs.
#marinelife #invertebrate #GreatTidePool #octopus #Tidepool
January 15, 2025 at 1:39 AM
drewharvell.bsky.social
A day for chitons near the Great Tide Pool with @brookeweigel.bsky.social . Here is a lined chiton and a mossy chiton showing their 8 characteristic plates.

#chiton #invertebrates #tidepool #marinelife
January 12, 2025 at 1:50 AM
drewharvell.bsky.social
A day for chitons on low tides near Ed Rickett’s Great Tide Pool in Pacific Grove. Here's a huge gumboot chiton chillin' with a bat star and lined and mossy chitons below.
#marinelife #intertidal #chiton #invertebrates
January 12, 2025 at 1:50 AM
drewharvell.bsky.social
A few more of 2024 #tidepools for #invertefest
January 4, 2025 at 4:42 PM
drewharvell.bsky.social
A few of my favorite tidepool shots of 2024 from San Juan Island and Monterey, better late than never for #invertefest!

#marinelife #tidepool #invert #nudibranch #seastar
January 4, 2025 at 4:42 PM
drewharvell.bsky.social
My #Invertefest holiday attempt at Hopkins Rose watercolor. Like a flamingo, it uptakes color from its prey, a red/pink bryozoan. It was named by Frank Macfarland in 1905 after Timothy Hopkins, patron of Hopkins Marine Lab.

#invertefest #marinelife #nudibranch #invert #GreatTidepool #Tidepool
December 29, 2024 at 2:43 PM
drewharvell.bsky.social
For Invertefest day 1 and celebrating King Tides is my 5 Phylum intertidal cave. How many different Invert groups can you find from this Monterey tidepool cave?

#Invertefest #marinelife #invert #tidepool
December 26, 2024 at 4:25 PM
drewharvell.bsky.social
Here's the full moon rising and the very large ochre and another young bloodstar...a lot to see on one fantastic tide series
December 17, 2024 at 3:38 AM
drewharvell.bsky.social
Full moon rising over Monterey Bay and the Stars are out on a King Tide. Such a brilliant diversity! Bat stars, ochre stars, baby blood stars, and brittle stars! #Marinelife #Invert #lowtide #tidepool #intertidal #seastar
December 17, 2024 at 3:34 AM
drewharvell.bsky.social
Brittle star (maybe Ophiothrix sp) in tidepools on king-tide near batstar nursery on my spineless meanders. Those tubefeet!
#marinelife #inverts #kingtide #intertidal #beach
December 15, 2024 at 5:32 PM
drewharvell.bsky.social
BIg waves during kingtide near Batstar nursery.
December 15, 2024 at 5:21 PM