Sharks The Animal Answer Guide
80 Sharks: The Animal Answer Guide advanced have larger brains. The relatively primitive squatiniform angel sharks and lamniform ...
Shark Behavior 81 long as 18 days. Motoro Stingrays (Potamotrygon motoro) develop a mental map of their surroundings, learning t ...
82 Sharks: The Animal Answer Guide end that was blocked by the mesh. Each ray “rapidly learned to use water as a tool to extract ...
Shark Behavior 83 movies). However, sharks do locate bony fishes by eavesdropping on their prey’s sounds. What is “tonic immobil ...
84 Do sharks migrate? Although some sharks, such as Bull and Bonnetheads, are comparative stay-at-homes (see “Are any sharks ter ...
Shark Ecology 85 to congregate (see “How can I see sharks in the wild?” in chapter 8), it is likely that some of these are the s ...
86 Sharks: The Animal Answer Guide are underestimates because they record only starting and ending points for sharks tagged at o ...
Shark Ecology 87 tropics, they descend to open ocean depths as great as 1,000 m (3,300 ft), where they remain active for months, ...
88 Sharks: The Animal Answer Guide Spotted Eagle Rays in the Bahamas move offshore in early summer and re- turn to shallow reef ...
Shark Ecology 89 the vertical migrations of some sharks are impressive. Vertical migrators experience greater changes in tempera ...
90 Sharks: The Animal Answer Guide light organs on their sides and bellies. Capitalizing on this predator-prey interaction are C ...
Shark Ecology 91 have an internal (genetic or learned) map, compass, and clock. They com- pare where they are and in what direct ...
92 Sharks: The Animal Answer Guide 1937, two commercial fishermen in Alton, Illinois, were surprised to find a 1.5-m-long (5-ft) ...
Shark Ecology 93 with Largetooth Sawfish (Pristis microdon), have been heavily overfished in Lake Nicaragua and are now protecte ...
94 Sharks: The Animal Answer Guide water that comes into its body by increasing its urine production 20-fold. These and other ph ...
Shark Ecology 95 Skates live on the sea floor, with three families—rajid hardnose skates, arhynchobatid softnose skates, and ana ...
96 Sharks: The Animal Answer Guide followed by the North and South Atlantic (92) and the North and South Pacific (26). Another h ...
Shark Ecology 97 Some species occur throughout an ocean basin; this is the case with the Pa- cific Spookfish (Rhinochimaera paci ...
98 Sharks: The Animal Answer Guide are still sharks with low reproduction rates (see chapter 6). Some dogfish stocks have been f ...
Shark Ecology 99 mens plus visual sightings by divers of four animals along 300 km of the eastern coastline of South Africa. The ...
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