How Sea Otters Eat Spiny Sea Urchins

Via Oregon Zoo, which writes:

Uni brunch for Lincoln the rescued sea otter! Sea otters love snacking on sea urchins, which are voracious grazers of kelp. By keeping urchin populations in check, sea otters keep kelp forests healthy. The kelp forests provide homes, food and protection for many other species, including us. Thank you sea otters!