Early Oligocene kelp holdfasts and stepwise evolution of the kelp ecosystem in the North Pacific. Proceedings of the National Academy of Sciences, 2024; 121 (4) DOI: 10.1073/pnas.2317054121; ...

A fossil showing kelp 'holdfasts,' the root-like structures that serve to tether the algae to the seafloor. Steffen Kiel. Asking a fossil how old it is. THANKS TO OUR SPONSOR: Become a Sponsor.

An X-ray reconstruction of a 32-million-year-old fossil kelp holdfast colored to show the base (orange), holdfast (yellow) and the bivalve shell to which it attached (blue). The unique underwater ...

Kelp’s holdfast, or rootlike structure, can host more than 90 animal species. Zooplankton, for example—full of the carotenoids that make salmon flesh pink—appear at higher rates in Kelp forests than ...

Newly discovered kelp fossils peg their existence to 32 million years ago. These fossils may help explain how the Pacific Ocean's underwater 'forests' came to be.

There are a lot of kids in the “Hold Fast” exhibit about kelp forests. They’re running through a display of 27 kelp plant images, printed on silk sheets that hang from the ceiling to the floor.

From a grip called a holdfast that’s affixed rootlessly to the seafloor, giant kelp can stretch up to 175 feet to touch the surface; even the smaller bull kelp can grow an average of four inches ...

An X-ray reconstruction of a 32-million-year-old fossil kelp holdfast colored to show the base (orange), holdfast (yellow) and the bivalve shell to which it attached (blue).

To make the tool, the orcas use their teeth to grab a stalk of kelp by its "stipe"—the long, narrow part near the seaweed's holdfast, where it tethers to the rock. They use their teeth, motion of ...

I felt energized and blessed to spend a day on the waters of picturesque Goleta Bay Wednesday, March 27 to help deploy a new kelp restoration reef, which No paywalls. No subscriptions.

Kelp can help to fortify the environment amid warming temperatures. Underwater forests could be the answer to helping to mitigate the environment from the impacts of climate change, experts told ...

Salomé Buglass discovered an unexpected kelp forest while studying underwater mountains in the Galapagos. Kelp—a type of seaweed—usually grows in shallower, cooler areas. So why was an entire ...