Sometimes it can feel like the ocean is eternal, untouched by time. As our featured papers this week show, however, change happens even in the deep. One new article shows that past warming contributed to decreasing size in mesopelagic fish. Another paper discusses how cod populations are moving as the ocean warms, while a third investigates how symbionts helped invertebrates adapt to deep sea habitats.
Other key news this week includes a revealing study of deep-sea squat lobsters, the furthest-north sighting of “dreamer holothurians” on record, and recent highlights of the Challenger 150 programme. Finally, make sure to scroll to the end of the Round-Up to watch newly released footage of the bigfin squid.
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