Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) in shallow water gathering very close to shore, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) swimming in shallow crystal clear water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) split level view of group hunting at dusk, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Striated green heron (Butorides striatus) jumping to catch dragonfly prey, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus) swimming in shallows at sunset, Aldabra Atoll, Seychelles, Indian Ocean

Franco Banfi / Great frigatebird (Frigata minor), male with inflated gular sac, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Giant squirrelfish (Sargocentron spiniferum), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Potato cod grouper (Epinephelus tukula), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Flatworm (Maiazoon orsaki) on sponge, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Nudibranch (Goniobranchus geminus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Magnificent sea anemone (Heteractis magnifica), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Tasseled scorpionfish (Scorpaenopsis oxycephala), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.