Dr Karen Chin will be giving a lecture on Dino Poop TONIGHT My mother also mentions that the latest SCIENCE NEWS has an article on dinosaur dung beetles. U.S. Geological Survey host a lecture, "Dino Dung" at 7 p.m. Thurs. (2nd floor conference room- building 3) 345 Middlefield Rd., Menlo Park. CALIFORNIA Free. For more info call (650)329-5000.