It's #SpongeSunday! The cavities in the body of this long-stalked #Caulophacus #sponge give this resident white #squatlobster (#Munidopsis sp.) a room with a view, as well as protection from potential predators.

@EVNautilus #lobsters #sponges #marineanimals

#SpongeSunday: Some #glasssponges, such as this 2-meter-tall #Caulophacus, grow long, flexible stalks to reach higher in the water column for #filterfeeding. Some sponges are thought to be hundreds or even thousands of years old!

@EVNautilus #Sponges #marineanimals #ocean