Biologist Tammy Schmidt from the Washington Department of Fish and Wildlife (WDFW) measures turtle #1720 to see if it is big enough to release back to the wild. At the Woodland Park Zoo in Seattle biologists weigh, size and mark around 140 western pond turtles for future release in recovery sites. The turtles were collected from the wild 10 months ago as eggs and hatchlings and brought to the Woodland Park Zoo to grow. The endangered turtle has many threats to survive including the invasive bullfrog, disease, and suitable habitat.