For hundreds and millions of years
Amphibians have existed on Earth for over 300 million years. They are one of the oldest vertebrate groups, with their ancestors dating back to the Devonian period.
they have lived on earth for about 6000 years
Lobsters have lived on the earth for 250 million years.
they have lived for up to millions of years
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On what planet? Amphibians are alive and well on Earth.
about 100million yrs
yes they are lived both on land and water.
1.4 million years
Earth's core is warmed by the slow decay of long lived isotopes.
If you look at the history of earth as a 15cm ruler dinosaurs are around 7cm and man is not even 1mm
Amphibians. Amphibians evolved in the Devonian period, about 400 mya. Adelobasileus, thought to be the ancestor of all modern mammals, lived in the late Triassic, about 225 mya.