1. Calling is postulated to be energetically costly to anurans in general. 2. In anurans , 70 % of polyandrous species exhibit paternal care. 3. This chemical defence does not exist in any native Australian anuran . 4. Anurans can only regenerate their limbs during embryonic development.5. They are therefore among the anurans commonly known as " flying frogs ". 6. These amphibians are anurans , of the family Pipidae. 7. It was named for Darrel Frost in recognition of his work on anuran systematics. 8. However, opalines have been found in saltwater fish which have no access to anurans . 9. Since anurans are highly sensitive to motion, females use conspicuous movements to communicate interest. 10. The Anura include all modern frogs and any fossil species that fit within the anuran definition.
