0 an animal, such as a frog, that lives both on land and in water but must produce its eggs in water --
1 an aircraft or other vehicle that can be used on land and on water: --
2 An amphibian animal lives both on land and in water but must produce its eggs in water: --
3 An amphibian vehicle can be used both on land or in the air and in water: --
Troops were brought in by amphibian vehicles and helicopters.
4 a type of animal that lives both on land and in water: --
Frogs and turtles are amphibians.
In amphibians, oocytes increase in volume during oogenesis.
Investigations of the whole process of fertilisation in the newt may lead to an understanding of adaptation to the fertilisation mode in amphibians.
How many times has terrestrial breeding evolved in anuran amphibians?
The present study showed that the availability of the major prey types (amphibians and fish) increased during the wet season.
The small dorsal pallium in amphibians is likely to be homologous to the dorsal cortex of reptiles and the hyperpallium of birds.
Accordingly, there is a fast growing body of literature on the effects of oestrogen-like chemicals on gonad development in amphibians and fish from laboratory investigations.
In fact, the scope of the volume reaches even wider, as it closes with a section on stem tetrapods and fossil amphibians.
Invertebrates, plants, micromammals, fish and even amphibians are briefly discussed.
