Pinnipeds, cetaceans and invertebrates - oh, my! Flipper Fest is coming up soon - May 31st, just three weeks away. Make sure to stop by the Alki Bathhouse from 1-5pm and learn from the experts about the marine mammals of Washington - from tiny harbor seal pups (a “pinniped” species) to giant humpback whales (a “cetacean” species).Did you know that a record number of humpback and gray whales - at least 30 - were entangled in fishing gear last year, mostly crab pots? As of April, at least 25 entanglements had been reported off California alone for 2015 , on a tragic record-setting pace. The line securing crab traps to buoys cuts deep into a whale’s flesh, causing serious injury or death.At Flipper Fest, you’ll learn from Northwest Straits to lessen drifting, derelict pots that endanger whales and often entrap and kill other sea life. It’s just one of the many ways we can keep our waters safer for those who call Puget Sound home. Visit the “Marine Debris and Pollution” exhibits at Flipper Fest to find out how you can help. At the “Cetacean Station” exhibits, you can talk to Cascadia Research about their first-hand, dangerous - and often, lifesaving - whale disentanglements over the past years. Read about a challenging May 2010 disentanglement of a humpback by Cascadia’s team off the Washington coast (photo above). For the story and video of another whale disentanglement off the California coast last year, click here Crunch. “Oops!” Find out why you need to be extra careful exploring the beach rocks at low tide. It’s so you don’t destroy habitat for “invertebrates” like sea snails, sea stars and hermit crabs - or scrunch them or their young. Seattle Aquarium Beach Naturalists will be at the event all afternoon to answer your questions about this fascinating miniature world. You’ll leave knowing why it’s never a good idea to pick up or relocate these extraordinary critters.Local businesses have donated some- everything from food to kayaking to area attractions. Whale-sized thanks for their generosity! Tickets are $1 and will benefit Seal Sitters’ educational outreach and marine mammal stranding work. Drawings will be held at 2:30, 3:30 and 4:30 (you need not be present to win). There will be a, with a chance to win a “Share the Shore” t-shirt, seal boogie board or ocean backpack.– Sunset Kayak Tour for 2 people- $50 gift card- $30 certificate for custom cake– certificate for 8” Triple Layer Chocolate Cake- $25 gift card- $50 gift card– 12 cupcake certificates– 4 admission passes (2 winners of 2 passes each)– autographed copy of The Salish Sea book– Ski or Snowboard weekend rental– (four) $10 gift cards- $25 gift card- $50 gift card– Family Pass for 4, including IMAX- (2) $25 certificates (2 winners of 1 each)– 2 brunch certificates– 4 Guest Passes– autographed mini soccer ball- $20 gift certificate- $25 gift card– Family Fun Pack passes