Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.
-
Upload
samantha-katrina-kennedy -
Category
Documents
-
view
216 -
download
0
Transcript of Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.
![Page 1: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/1.jpg)
![Page 2: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/2.jpg)
•Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows
![Page 3: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/3.jpg)
•Cartilage skeleton
Skeleton of a porbeagle shark
![Page 4: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/4.jpg)
•Rigid fins •Gill slits
![Page 5: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/5.jpg)
•No swim bladder
![Page 6: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/6.jpg)
•350 sp.
• Mostly predators
Great White Shark
Whale Shark
•Some filter feeders
![Page 7: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/7.jpg)
•Well developed caudal (tail) fin
•Can not force water over gills; constant swimmers
•Exception: lemon & nurse sharks
![Page 8: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/8.jpg)
•Rows of teeth
![Page 9: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/9.jpg)
![Page 10: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/10.jpg)
![Page 11: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/11.jpg)
Andre Hartman – Crazy Shark Man
![Page 12: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/12.jpg)
![Page 13: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/13.jpg)
•No swim bladder –
•Large oily liver for buoyancy (20% body weight)
![Page 14: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/14.jpg)
•Fusiform (torpedo shaped) body = fast swimmer
Blue Shark
•Countershading – dark on top, light on bottom
![Page 15: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/15.jpg)
Great White Shark
![Page 16: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/16.jpg)
Hammerhead Shark
![Page 17: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/17.jpg)
450-550 sp.
•Flattened bodies; most benthic
exception – manta & eagle rays•Broad, wing-like pectoral fins for gliding through water
![Page 18: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/18.jpg)
•Ventral gills (5 pairs) & mouth
Bluntnose Stingray
![Page 19: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/19.jpg)
•Eat fish & invertebrates
Southern Stingray
![Page 20: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/20.jpg)
Whip-like tail with stinger & poison gland
NO whip-like tail & poison gland
![Page 21: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/21.jpg)
14 foot freshwater ray in Thailand
![Page 22: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/22.jpg)
75 lb 5-6 foot spotted eagle ray kills woman in Florida (2008)
![Page 23: Moveable jaws (usually ventral) & well developed, replaceable teeth in 6-20 rows.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f3c5503460f94c5a987/html5/thumbnails/23.jpg)