Shawn Miller of Make The Switch 4 Nature has made it his life’s mission to provide empty shells for the hermit crabs on the ...

In 2010, photographer Shawn Miller spotted a hermit crab using a bottle cap as a shell. Later, he found the crabs using discarded measuring cups and laundry detergent caps. He was understandably ...

Instead, hermit crabs have a hard exoskeleton on the front part of their bodies but a soft tail on the other half, which they protect using the discarded shells of other animals, like whelks.