There are plenty of animals to spot during your travels around Western Australia including 141 of Australia's 207 mammal species (25 of which are only found in WA). Around 400 reptile species, and roughly 1,600 marine species. Tick them off the list below as you go: Quokkas Kangaroos Bottlenose dolphinsEchidnasWhale sharksKoalasAustralian sea lions