Ad
related to: do sharks have buttholes to play guitar for beginners book
Search results
Results From The WOW.Com Content Network
Guitarfish have a body form intermediate between those of sharks and rays. The tail has a typical shark-like form, but in many species, the head has a triangular, or guitar -like shape, rather than the disc-shape formed by fusion with the pectoral fins found in other rays.
Pages in category "Books about sharks" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. C.
Female shovelnose guitarfish are aplacental viviparous and give birth to live young, but do not develop a placenta. [22] Pregnant females generally carry an average of 5 embryos at a time with a maximum of 10. [23] The size of the female will determine the size of the litter. The sex ratio of these embryos is 1:1. [24]
The giant guitarfish (Rhynchobatus djiddensis), also known as the whitespotted wedgefish, is a large species of guitarfish in the family Rhinidae.It is restricted to the Red Sea, Persian Gulf, and western Indian Ocean, [4] but was formerly considered more widespread due to confusion with its relatives.
Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. Most batoids have a flat, disk-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a spindle-shaped body. Many species of batoid have developed their pectoral fins into broad flat wing-like appendages.
The shark kidney excretes urea that is needed for the shark to have in its system so the shark does not become dehydrated from living in seawater. [14] Sharks hearts have two chambers. The shark heart's main importance is providing oxygenated blood to the entire body while filtering out the deoxygenated blood. [15]
Rhina ancylostoma, also known as the bowmouth guitarfish, shark ray or mud skate, is a species of ray and a member of the family Rhinidae. Its evolutionary affinities are not fully resolved, though it may be related to true guitarfishes and skates .
Sharks are split into eight orders: Carcharhiniformes: ground sharks, the largest order of sharks, including requiem sharks, catsharks, swellsharks, houndsharks, weasel sharks and hammerheads; Heterodontiformes: bullhead sharks; Hexanchiformes: cow sharks and frilled sharks; Lamniformes: mackerel sharks, including thresher sharks