Scientists in Argentina unearth oldest tadpole, from dinosaur times | Easy Reading

Scientists in Argentina [tooltip title=”have discovered” content=”〜を発見した”]have discovered[/tooltip] the [tooltip title=”oldest-known” content=”現時点で最古の”]oldest-known[/tooltip] tadpole, researchers said.

The tadpole is from a large frog [tooltip title=”species” content=”生物種”]species[/tooltip] that lived alongside dinosaurs about 161 million years ago during [tooltip title=”the Jurassic Pe