It’s not hard to understand why “Barnacles!” is SpongeBob SquarePants' go-to curse. For beach-goers, the hard-shelled critters can slice tender bare feet or gunk up an otherwise prize sand dollar. For ...

If you’ve ever tried to remove a barnacle from a boat hull or piling, you learned they don’t go easily. You’re lucky if they go at all. Barnacles cling to ships, rocks and even to the skin of whales.

The climate is changing at an unprecedented rate, and so are the environments of many plant and animal species. Populations die out in places that become intolerable, and thrive in other places that ...