Two nudibranchs mating(?) in Malaysia.

Goniobranchus coi nudibranch at Heron Island on the Great Barrier Reef.

A Porities sp. (top) and Montiporia sp. duke it out over the competition for space on the reef.

Reef flat in Tubbataha Reefs Natural Park in the Philippines.

Anemonefish in Timor-Leste.

Ghostnet in Tun Mustapha Park, Malaysia.

Coral bleaching in Tun Mustapha Park, Malaysia in May 2017.

A Porities coral with Christmas tree worms and crustose coralline algae in Timor-Leste.

Sea crate off Green Island, Taiwan.