John Muir Elementary School fifth-graders Kailey Onstott, 10, right, and Megan Jensen, 10, line up the vertebrae as they help assemble a gray whale skeleton before class in Martinez. The display is part of an interactive science lesson sponsored by the PTA and facilitated by Dan Sudran, executive director of Mission Science Workshop. At left, fifth-grader Lacey Beesley, 10, holds a large bone as she helps in the assembly of the 30-foot skeleton from a whale that died on a beach in Pescadero.

Online extra:

To see a slideshow of the display, scan this QR code with your smartphone, or visit http://photos.mercurynews.com/2012/09/10/martinez-students-get-a-whale-of-a-lesson/.




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