closeup on a gravid female hong kong warty newt, paramesotriton hongkongensis in an aquarium

amphibia amphibian asia asian chordata caudata ecology hongkong nature other pet plant paramesotriton hongkongensis salamandridae skin warty waterweeds animal aquarium aquatic biology botanical botany brown close-up endangered female gravid green herpetology macro newt one outdoors pet-trade predator salamander single starved tailed vertebrate wild wildlife zoology