Snapping Turtle (Chelydra serpentina) : 無料・フリー素材/写真
Snapping Turtle (Chelydra serpentina) / Ted LaBar
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Chelydra serpentina is a large freshwater turtle with a carapace (upper shell) length of 203-494 mm (8-over 19 in). The tail is very long, as long as or longer than the carapace, with a saw-toothed appearance. The range of the snapping turtle encompasses the entire eastern and central United States from southern Canada, including Nova Scotia and southern and eastern Maine. --Source: United State Geological Survey.This turtle was found only about a dozen steps from my former home on a wooded lot in middle Tennessee. Beside the house was a depression about 50m wide by about 6m deep. At the bottom of the depression was a sinkhole where, every few years, if enough rain fell, it would flood the bottom of the depression. That was the only source of natural water within quite a distance. Living there 14 years, this was the only time I saw the snapper.Snapping turtles can be found in many aquatic systems, including ponds, lakes, streams, rivers, swamps, and even muskrat lodges and burrows. The turtles will eat anything they can subdue, day or night, including crayfish, catfish, toads and frogs, muskrats, birds and insects. Raccoons are among the most effective at predation of turtle eggs and young. The behavior of snapping turtles differs according to where it occurs. In the water, they are less defensive. On land, however, is where they earn their name, striking out while forcibly exhaling air. The head is thrust outward and upward, often over the back of the shell. --Source: Virginia Herpetological Society |
| 撮影日 | 2015-05-26 10:43:50 |
| 撮影者 | Ted LaBar , Central Kentucky, USA |
| タグ | |
| 撮影地 | Heathwood, Tennessee, United States 地図 |
| カメラ | Canon EOS 7D , Canon |
| 露出 | 0.01 sec (1/100) |
| 開放F値 | f/8.0 |
| 焦点距離 | 55 mm |