Doug Perrine / Barjacks (Caranx ruber), Yellowtail snapper (Ocyurus chrysurus), and Sergeant major damselfish (Abudefduf saxatilis) swimming around wreck of bow gun on C-58 shipwreck off Puerto Morelos, near Cancun,...

Alex Mustard / Caribbean reef sharks (Carcharhinus perezi) swimming through the middle of a school of yellowtail snappers (Ocyurus chrysurus). Grand Bahama, Bahamas. Tropical West Atlantic Ocean.

Gabriel Rojo / Plain-mantled Tit-Spinetail (Leptasthenura aegithaloides), La Pampa, Argentina

Alan Watson / Buttressed base of a cola tree (Mora abbottii) in lowland tropical rainforest at 430 metres, Loma Quita Espuela Scientific Reserve, Dominican Republic, Caribbean

Alan Watson / Moss-covered base of a Cola tree (Mora abbottii), with manacla or sierra palms (Prestoea montana), in cloud forest at 900 metres, Loma Quita Espuela Scientific Reserve, Dominican Republic, Caribbean

Alan Watson / Moss-covered base of a Cola tree (Mora abbottii), with manacla or sierra palms (Prestoea montana), in cloud forest at 900 metres, Loma Quita Espuela Scientific Reserve, Dominican Republic, Caribbean

Alan Watson / Buttressed base of a Cola tree (Mora abbottii) Manacla / Sierra palms (Prestoea montana) in tropical rainforest at 770 metres, Loma Quita Espuela Scientific Reserve, Dominican Republic, Caribbean

Ingrid Visser / Kea (Nestor notabilis) investigating Coca Cola can, Southern Alps, New Zealand

Charlie Hamilton-James / Yellow tail snapper (Ocyurus chrysurus) shoal with Creole fish (Paranthias furcifer) at dive site known as 'The Wreck', Cano Island, Costa Rica, Pacific Ocean.

Claudio Contreras / Fisherman showing catch of Yellowtail snapper (Ocyurus chrysurus) and Great barracuda (Sphyraena barracuda). Yellowtail snapper fishery, Utila Island, Honduras. Caribbean Sea.

Claudio Contreras / Yellowtail snapper (Ocyurus chrysurus) hooked on fishing line. Yellowtail snapper fishery, Utila Island, Honduras. Caribbean Sea.

Shane Gross / Giant plumose sea anemone (Metridium farcimen) attached to discarded cola bottle off Vanvouer Island, British Columbia, Canada.