Where does this come from, and can I check it?

The fronds reach the surface and shelter fish, otters and urchins. The figure is taken from NOAA Fisheries, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a animals fact?

Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Kelp forests grow tens of metres from the seabed

The fronds reach the surface and shelter fish, otters and urchins Kelp is an alga rather than a plant and anchors to rock with a holdfast. In places where sea otters are absent, urchins graze the forest down to bare rock. Bringing otters back has restored kelp in several regions. It sits in Mondo's animals collection, one of 200 facts that each trace back to the reference below.

Where this comes from

NOAA Fisheries

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

Go further

Nature & Animals trivia

More facts like this

A dead whale feeds a community for decadesA whale fall supplies scavengers and bacteria for up to 50 years Coral reefs are built by tiny animalsPolyps deposit calcium carbonate skeletons over thousands of years Bats leave a roost at sunset in a rushGroups emerge from a cave within a few minutes, warmest and hungriest first An octopus has three heartsTwo pump blood to the gills and one pumps it around the body.Sharks are older than treesSharks have been around for roughly 450 million years, well before the first trees.A blue whale tongue weighs as much as an elephantThe tongue of an adult blue whale can weigh around 2.7 tonnes.

Tags: kelp, ecosystems, otters

Kelp forests grow tens of metres from the seabed: the short answers

Where does this come from, and can I check it?: The fronds reach the surface and shelter fish, otters and urchins. The figure is taken from NOAA Fisheries, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a animals fact?: Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.