Inaki Relanzon / Western Long-billed corella (Cacatua tenuirostris) sitting on cliff edge, Great Ocean Road, Beach of Islands Coastal Park, Victoria State, Australia.

Steven David Miller / Long-billed corella {Cacatua tenuirostris} perched, Grampians National Park, Victoria, Australia

Steven David Miller / Long billed corella on stump (Cacatua tenuirostris) captive

Roger Powell / Long billed corella grazing {Cacatua tenuirostris} Victoria, Australia.

Chris Newbert / Nembrotha Nudibranch (Nembrotha sp) pair mating, Indonesia

Solvin Zankl / Nudibranchs mating {Nembrotha rutilans} Lembeh, Sulawesi

Fred Bavendam / Nembrotha Nudibranch (Nembrotha rutilans) portrait, underwater, Manado, North Sulawesi, Indonesia

Juergen Freund / Nudibranch (Nembrotha rutilans) feeds on tunicate. Philippines, Pacific Ocean

Juergen Freund / Nudibranch {Nembrotha rutilans} feeding on tunicate. Philippines