Welcome to Shark Week!! Every year since 1988, the Discovery Channel has devoted a week each summer to sharks. What started as an attempt to educate the public that there was more to sharks than just what they saw in Jaws has since become a cultural phenomenon. Last year while watching Shark Week, EmmaBoo227 started to write the names of sharks on log sheets she created and stuck them in a handful of containers we had won at a raffle and the idea for a shark week series was born.
But where to hide a shark week series? In the ocean would be ideal, but not realistic. But we have a body of water nearby. And while the caches can’t really be hidden in the lake, we could make them all puzzles and hide the caches around the lake. So that’s what we did. We hope you enjoy learning a little about some sharks you have probably heard of and learning a little more about some sharks you have probably never heard of.
These hides are all placed around Folsom Lake. Care was taken to avoid poison oak as much as possible, but it is still out there. Also beware off all the other hazards of the lake including, but not limited to, ticks, snakes, other animals, heat and uneven footing.
Cache is located at N38 42.CDA, W121 06.EFB
Viper Dogfish
The viper dogfish or viper shark (Trigonognathus kabeyai) is a rare species of dogfish shark in the family Etmopteridae, and the only extant member of its genus. It has been found in the Pacific Ocean off southern Japan, the Bonin Islands, Pacific Ocean off northern Taitung Countyand the Northwestern Hawaiian Islands. This species inhabits upper continental slopes and seamounts. It may migrate vertically, shifting between bottom waters 270–360 m (890–1,180 ft) deep during the day and upper waters less than 150 m (490 ft) deep at night. A slender, black shark reaching 54 cm (21 in) in length, the viper dogfish can be recognized by its narrow, triangular jaws and well-spaced, fang-like teeth. It also has two spined dorsal fins, dermal denticles with faceted crowns, and numerous light-emitting photophores concentrated on its ventral surface.
Feeding mainly on bony fishes, the viper dogfish captures prey by protruding its jaws and impaling them with its teeth. Its impressive gape allows it to swallow relatively large fish whole. The skeletal and muscular structure of its head shows unique features that support this feeding mechanism, which is unlike that of other dogfish sharks. This shark gives birth to live young, which are nourished by yolk during gestation.
A. What year was the viper dogfish first classified?
B. How many pounds is the heaviest recorded female viper dogfish (first digit)?
C. Most viper dogfish have been found around Japan. Where was the one specimen found that was not near Japan?
D. How long was the holotype of the viper dogfish (cm)?
E. How many inches long is the largest recorded male viper dogfish (first digit)?
F. How many dorsal fins does the viper dogfish have?
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