Sea stars, also known as starfish, are invertebrates and echinoderms. They are closely related to sea urchins and sand dollars and over 2,500 different species live in the world's oceans. Many, such as this specimen, have five arms but other species feature 10, 20, or even 40 arms.
Sea stars are carnivores and prey on other marine creaturessuch as clams and oysters. They use small suction tube feet to crawl along the ocean floor and they have an eye on the tip of each arm. Sea stars have the ability to regenerate a new limb and some species can regenerate an entirely new sea star from just a portion of a severed limb.
Discovery Kit: Zoology (October 25 2019) Discovery Kits include a variety of artifacts and specimens from the Museum’s Collection that allow students to investigate global and local objects. The Collections support the Museum’s mission of inspiring curiosity and discovery around science, history, and culture. Each kit includes objects from the Museums archives, helpful resources and suggested activities. Discovery Kits are a great way for teachers to incorporate primary source and object-based learning into the classroom or as a way to prepare for or extend a Museum visit.
Virtual Discovery Kit: Zoology (April 2020) Zoologists and animal lovers alike can investigate unique animal specimens from habitats all around the world. Discover where these animals live, what they eat and what makes them special!