Portal:Turtles
Turtles are reptiles characterised by a special bony or cartilaginous shell developed from their ribs that acts as a shield. The earliest known turtles date from 157 million years ago. Turtles are ectotherms—they vary their internal temperature according to the ambient environment (commonly known as cold-bloodedness). However, leatherback sea turtles have noticeably higher body temperature than surrounding water because of their high metabolic rate. Though turtles live in and around water, they breathe air and lay eggs on land.
| More about the turtle... |
Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found.
The hawksbill's appearance is similar to that of other marine turtles. It has a generally flattened body shape, a protective carapace, and flipper-like arms, adapted for swimming in the open ocean. E. imbricata is easily distinguished from other sea turtles by its sharp, curving beak with prominent tomium, and the saw-like appearance of its shell margins. Hawksbill shells slightly change colors, depending on water temperature. While this turtle lives part of its life in the open ocean, it spends more time in shallow lagoons and coral reefs.
Human fishing practices threaten E. imbricata populations with extinction. The World Conservation Union classifies the Hawksbill as critically endangered.
WikiProjects related to turtles:
- ... that yellow-bellied sliders, popular as pets, are found in a wide variety of habitats, including rivers, floodplain swamps, seasonal wetlands, and permanent ponds?
Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found.
Green sea turtle Chelonia mydas
|
{{Wikipedia:WikiProject Turtles/Article alerts|display=columns}}
|
| Updated daily |
Template:/box-header {{Wikipedia:WikiProject_Turtles/Things you can do}} Template:/box-footer Template:/box-header
- African spurred tortoise
- Aldabra giant tortoise
- Alligator snapping turtle
- Arakan forest turtle
- Archelon
- Blanding's turtle
Bog turtle- Box turtle
- Chelidae
- Cheloniidae
- Chelydridae
- Common snapping turtle
- Cryptodira
- Desert tortoise
- Diamondback terrapin
- Eastern box turtle
- Emydidae
- European pond turtle
- Flatback sea turtle
- Florida softshell turtle
- Galápagos tortoise
- Geochelone
- Geochelone nigra abingdoni
- Geoemydidae
- Giant tortoise
- Gopherus polyphemus
- Graptemys
- Green turtle
- Hawksbill sea turtle
- Hermann's tortoise
- Hoan Kiem turtle
- Indian star tortoise
- Kemp's ridley
- Kinosternoidea
- Leatherback sea turtle
- Leopard tortoise
- List of Testudines families
- Loggerhead sea turtle
- Marginated tortoise
- Mata mata
- Meiolania
- Mud turtle
- Odontochelys
- Olive ridley sea turtle
- Painted turtle
- Pancake tortoise
- Pig-nosed turtle
- Pleurodira
- Proganochelys
- Pseudemys
- Radiated tortoise
- Rafetus swinhoei
- Red-eared slider
- Red-footed tortoise
- Russian tortoise
- Sea turtle
- Seychelles giant tortoise
- Speckled padloper tortoise
- Spotted turtle
- Spur-thighed tortoise
- Terrapene carolina
- Testudinoidea
- Tortoise
- Trionychia
- Trionychidae
- Turtle
- Turtle farming
- U.S. state reptiles
- Western pond turtle
Wood turtle- Yellow-bellied slider
Represents a Featured article or a Featured list, Represents a Good article
 |
 |
 |
 |
 |
 |
| Science | Biology | Evolutionary biology | Animals | Amphibians and Reptiles |
Extinct and Endangered Species |
- What are portals?
- List of portals
- Featured portals
