The Spinner Dolphin
Living in Florida you get to experience a variety of marine life. Growing up surrounded by bodies of water I’ve always taken a liking and enjoyed learning about spinner dolphins. The spinner dolphin is a breed of dolphins. Due to their aerial moves they are sometimes referred to as the acrobats of the sea. According to Whale Facts, spinner dolphins live in warm tropical waters of the sea, primarily coastal islands or banks,(“Spinner Dolphins.” Whale). They travel together in groups with other spinner dolphins. The groups they form are called pods or schools,(“Spinner Dolphins.” Whale). Dolphins switch their groups frequently, so there is no leader. Spinner dolphins can weigh up to 175 pounds and measure up to 8 feet (“Spinner Dolphins.” Whale). The average lifespan of a spinner dolphin is 20-30 years(“Spinner Dolphins.” Whale). The spinner dolphin is different from other dolphins because it is light grey on the stomach and dark grey on the back(“Spinner Dolphins.” Whale). They also have a long narrow beak (mouth) (“Spinner Dolphins.” Whale). Spinners rest in the shallow waters during the day, then hunt for food when it gets dark(“Spinner Dolphins.” Whale). The spinner dolphins are a subspecies of mammals that have a unique way of communicating, hunting, and sleeping(“Spinner Dolphins.” Whale).
An uncommon thing about spinner dolphins is the way they hunt. According to Whale Facts, hunting consists of the pod traveling to deep waters to a depth of 1000 feet being able to hold their breath up to 10 minutes. They typically hunt squid, shrimp, and small fish,(“Spinner Dolphins.” Whale). As stated by National Wildlife Foundation, Spinner dolphins are very friendly and like to socialize by hunting with other sea creatures. These creatures can include different types of dolphins, humpback whales, and tuna fish (“Spinner Dolphin.” National). According to an article in Whale Facts,
Hunting may occur in groups where one group of dolphins will swim around their prey herding them into a small dense ball while one or other dolphins swim through the densely compacted group of fish and take turns consuming the scared and paralyzed fish.
Once the schools have completed their meal, the spinner dolphins travel back to the shallow waters to rest.
Another unique thing about the spinner dolphins is their sleeping cycle, they actually are never fully asleep: “They literally sleep with one eye open” (“Spinner Dolphins.” Wild). According to Linki’s video Pure Nature Specials Spinner Dolphins, when the dolphin is at rest, half of its brain is functioning while the other half is resting (Linki). This process alternates throughout the night. This allows the dolphin to be partially...