A spider crab explores a small collapse pit floored by glass lava talus on the summit of Axial Seamount. Credit: UW/NSF-OOI/WHOI: V20.

A spider crab delicately walks across glassy rubble in a small collapse pit. Credit: UW/NSF-OOI/WHOI: V20.

A spider crab at the International District inspects the edge of a small collapse zone. Credit: UW/NSF-OOI/WHOI. V20.

A brush is used to clear away anemones that are hiding access to the junction box at the Oregon Shelf site. Credit: UW/NSF-OOI/WHOI; V20

A blob sculpin (Psychrolutes sp.) aka blobfish, at International District on Axial Seamount during VISIONS'20. Credit: UW/NSF-OOI/WHOI V20.

Beautiful purple-blue ciliates, white filamentous bacteria and tube worms with red hemoglobin-filled plumes, and limpets colonize the outside of the Mushroom edifice at ASHES. Credit: UW/NSF-OOI/WHOI V20.

A tanner crab next to bacterial mat at Southern Hydrate Ridge (780m). Credit: UW/NSF-OOI/WHOI, V19

Tunicates (aka sea squirts) covering the lamp of the Oregon Shelf digital still camera. Tunicates are chordates that start life as a swimming, fish-like animal and then settle on a surface and become sessile (attached) organisms that filter food out of the water flowing by. Photo Credit: UW/NSF-OOI/WHOI, V19

Different shapes and sizes of anemones covering the upper surface of the Oregon Shelf junction box. Photo Credit: UW/NSF-OOI/WHOI, V19

Close-up video of the Metridium anemones covering the upper surface of Oregon Shelf junction box. Photo Credit: UW/NSF-OOI/WHOI, V19

The Jason pilots carefully use a manipulator to cover the open socket of the Oregon Shelf junction box with a protective 'dummy plug' after disconnecting the digital still camera. Anemones cover most of the rest of the surface of the platform. Photo Credit: UW/NSF-OOI/WHOI, V19

A possessive shrimp colonized the junction box plug that we needed to disconnect to recover the Oregon Shelf digital still camera. The Jason ROV won the battle. Photo Credit: UW/NSF-OOI/WHOI, V19

Anemones flourish on the hard surfaces of the Oregon Shelf junction box, luckily leaving a gap wide enough for the orange handle of the power plug needed to disconnect the digital still camera. Photo Credit: UW/NSF-OOI/WHOI, V19

There are so many anemones covering the Oregon Shelf (80m) junction box that it can be hard to see the frame. Photo Credit: UW/NSF-OOI/WHOI, V19

A rear view of the anemones, barnacles, and tunicates covering the Oregon Shelf digital camera after a one year deployment. A lingcod fish is hanging out beneath the tripod, and a large number of ctenophores (comb jellies) were also seen at the site. Photo Credit: UW/NSF-OOI/WHOI, V19

The Oregon Shelf digital still camera, covered in barnacles, anemones, and tunicates (sea squirts), and sheltering a large lingcod, following a one-year deployment. Photo Credit: UW/NSF-OOI/WHOI, V19

Barnacles, anemones, and tunicates encrust the Oregon Shelf digital still camera tripod, with a lingcod hiding beneath. Credit: UW/NSF-OOI/WHOI, V19.

Fish school around the Oregon Offshore hydrophone (underwater microphone) tripod as it is prepared for recovery in 2019. Photo Credit: UW/NSF-OOI/WHOI, V19

A black cod fish swimming away from the Oregon Offshore BEP as it is prepared for recovery in 2019. Photo Credit: UW/NSF-OOI/WHOI, V19.

Zoroasterid (top left) and Solaster (center bottom) sea stars and a flatfish (top right) at the Oregon Offshore site. Photo Credit: UW/NSF-OOI/WHOI, V19

A sea pen (a colonial, stalked cnidarian, related to jellyfish) at Slope Base. Photo Credit: UW/NSF-OOI/WHOI, V19

A fringed sea cucumber next to the Slope Base junction box in 2019. Photo Credit: UW/NSF-OOI/WHOI, V19.

Barnacles, tunicates, and anemones biofouling the digital still camera at the Oregon Shelf site. Photo Credit: M. Vardaro, UW, V19

Close-up shot of white anemones on top of Oregon Shelf junction box MJ01C. Photo Credit: M. Vardaro, UW, V19

Close-up shot of shrimp hiding among the anemones encrusting Oregon Shelf junction box MJ01C. Photo Credit: M. Vardaro, UW, V19

A shrimp hiding among the anemones biofouling junction box MJ01C at the Oregon Shelf Site, deployed since 2014. Photo Credit: M. Vardaro, UW, V19

Deep-sea octopus (Muusoctopus sp.) at Axial Base 2600 m; Photo Credit: UW/NSF-OOI/WHOI, V19