Critter of the Month

Critter of the Month gives a peek into the lives of Puget Sound’s least-known inhabitants – mud-dwelling invertebrates collected by the Marine Sediment Monitoring Team. Each month we feature a different species or group, giving information on identification, habitat, and life history.
Critter of the Month gives a peek into the lives of Puget Sound’s least-known inhabitants – mud-dwelling invertebrates collected by the Marine Sediment Monitoring Team. Each month we feature a different species or group, giving information on identification, habitat, and life history.

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Stuck at home? Get cozy like the tunicate amphipod
Meet the tunicate amphipod, a critter that embraces the comforts of home like no other.
The solitary pink-mouth hydroid keeps it together (at a distance)
The solitary pink mouth hydroid demonstrates that it might just be possible to embrace togetherness – at a safe distance.
Got New Year’s resolutions? The two-tentacled hydroid proves that change is possible
Beneath the waters of Puget Sound, the two-tentacled hydroid proves that it’s possible to make a completely fresh start, while still keeping a few of those old bad habits.
Resilience and the purple sea urchin
Purple urchins aren't just faceless purple pincushions — they may have a thing or two to teach us about resilience in the face of challenges.
The gaper clams live in the shadows of giants
Nothing says “summer” like digging for clams in Puget Sound, but finding a gaper clam often brings disappointment. Geoduck hunters, don’t despair — the humble gaper is a treasure in its own right.
Bad blood? More like "mad love" for the Pacific blood star

With its bright coloring, the Pacific blood star Henricia leviuscula is a recognizable sight in rocky tide pools. Read on to learn about the crimson critter with a few tricks up its spindly sleeves.

We’re bubbling over with joy for the bubble snails

Did you know that March contains not one but TWO bubble-themed holidays? Not to be left out of the fun, this month’s Critter is the bubbliest of them all: the bubble snails.