It partly depends where you live. American English makes no distinction between turtles and tortoises.
Australian English considers Turtles and terrapins all to be aquatic or semi-aquatic species, while Tortoises are entirely land-based.
British English usage is that "Turtles" live in sea water, at least part-time. They are air-breathing and wonderful swimmers. They lay eggs on land (usually buried in sand) and the hatchings run to the sea as soon as they can.
British English says that Terrapins are basically like turtles, but live in fresh- or brackish water.
Terrapins and turtles are omnivorous, and need fish / protein.
Tortoises look like turtles but live entirely on land, and are vegetarians.
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Frogs and toads are so closely related that the distinctions are mostly to do with habitat, appearances and life cycles. Both are air-breathing.
Frogs lay large clumps of spawn, toads lay strings of less spawn.
Frogs have smooth wet skin, toads have dry bumpy skin.
Toads are much better adapted to dry conditions. Both Toads and Frogs die if their skin dries out.
Toads are usually bigger.
Adult toads spend most of their lives away from water, except they do breed in water. Frogs spend a lot of their adult lives in water.
In the UK, frogs are much more numerous.
More differences listed here.
Australian English considers Turtles and terrapins all to be aquatic or semi-aquatic species, while Tortoises are entirely land-based.
British English usage is that "Turtles" live in sea water, at least part-time. They are air-breathing and wonderful swimmers. They lay eggs on land (usually buried in sand) and the hatchings run to the sea as soon as they can.
British English says that Terrapins are basically like turtles, but live in fresh- or brackish water.
Terrapins and turtles are omnivorous, and need fish / protein.
Tortoises look like turtles but live entirely on land, and are vegetarians.
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Frogs and toads are so closely related that the distinctions are mostly to do with habitat, appearances and life cycles. Both are air-breathing.
Frogs lay large clumps of spawn, toads lay strings of less spawn.
Frogs have smooth wet skin, toads have dry bumpy skin.
Toads are much better adapted to dry conditions. Both Toads and Frogs die if their skin dries out.
Toads are usually bigger.
Adult toads spend most of their lives away from water, except they do breed in water. Frogs spend a lot of their adult lives in water.
In the UK, frogs are much more numerous.
More differences listed here.