Sharks
E467141
Sharks are a diverse group of cartilaginous fish known as apex predators in marine ecosystems, characterized by their streamlined bodies, multiple rows of sharp teeth, and highly developed senses.
Statements (63)
| Predicate | Object |
|---|---|
| instanceOf |
cartilaginous fish
ⓘ
chondrichthyan ⓘ predatory fish ⓘ |
| areApexPredatorsIn | many marine ecosystems ⓘ |
| areOlderThan | dinosaurs ⓘ |
| canInhabit |
coastal waters
ⓘ
coral reefs ⓘ deep sea ⓘ open ocean ⓘ some freshwater systems ⓘ |
| class | Chondrichthyes NERFINISHED ⓘ |
| diet |
crustaceans
ⓘ
fish ⓘ marine mammals ⓘ plankton (in filter-feeding species) ⓘ |
| ecologicalRole |
help maintain healthy marine ecosystems
ⓘ
regulate prey populations ⓘ |
| fertilizationType | internal fertilization ⓘ |
| fossilRecordExtendsBackTo | more than 400 million years ago ⓘ |
| haveBodyShape | streamlined ⓘ |
| haveBuoyancyAdaptation | large oily liver ⓘ |
| haveGillSlits | 5 to 7 pairs ⓘ |
| haveJawType | protrusible jaws in many species ⓘ |
| haveMetabolism | mostly ectothermic ⓘ |
| haveOrgan |
ampullae of Lorenzini
ⓘ
lateral line system ⓘ |
| haveSense |
electroreception
ⓘ
good vision ⓘ highly developed hearing ⓘ highly developed sense of smell ⓘ |
| haveSkeletonComposedOf | cartilage ⓘ |
| haveSkinCoveredWith | dermal denticles ⓘ |
| haveStructure | claspers in males ⓘ |
| haveTailType | heterocercal tail ⓘ |
| haveTeeth | multiple rows of sharp teeth ⓘ |
| includePartiallyEndothermicSpecies | lamnid sharks ⓘ |
| includeSpecies |
blue shark
ⓘ
bull shark ⓘ goblin shark ⓘ great white shark ⓘ greenland shark NERFINISHED ⓘ hammerhead shark ⓘ mako shark ⓘ nurse shark NERFINISHED ⓘ tiger shark ⓘ whale shark ⓘ |
| kingdom | Animalia ⓘ |
| lack | swim bladder ⓘ |
| lifespanRange | from about 20 years to over 400 years depending on species ⓘ |
| phylum | Chordata ⓘ |
| relatedTo |
rays
ⓘ
skates ⓘ |
| reproductionType |
oviparous
ⓘ
ovoviviparous ⓘ viviparous ⓘ |
| sizeRange | from less than 20 cm to about 12 m depending on species ⓘ |
| subclass | Elasmobranchii NERFINISHED ⓘ |
| threatenedBy |
bycatch
ⓘ
habitat degradation ⓘ overfishing ⓘ shark finning ⓘ |
| toothReplacement | continuous throughout life ⓘ |
| typicalHabitat | oceans ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.