• silvertip sharks, Carcharhinus albimarginatus, gather around a shallow rock to mate or be cleaned, Cocos Island, Costa Rica
  • silvertip sharks, Carcharhinus albimarginatus, gather around a shallow rock to mate or be cleaned, Cocos Island, Costa Rica
  • silvertip sharks, Carcharhinus albimarginatus, gather around a shallow rock to mate or be cleaned, Cocos Island, Costa Rica
  • silvertip sharks, Carcharhinus albimarginatus, gather around a shallow rock to mate or be cleaned, Cocos Island, Costa Rica
  • silvertip sharks, Carcharhinus albimarginatus, gather around a shallow rock to mate or be cleaned, Cocos Island, Costa Rica
  • swarming sharks and dolphins dive into frantic, balled-up fish; bait ball; Cocos Island, Costa Rica, Pacific
  • swarming sharks and dolphins dive into frantic, balled-up fish; bait ball; Cocos Island, Costa Rica, Pacific
  • swarming sharks and dolphins dive into frantic, balled-up fish; bait ball; Cocos Island, Costa Rica, Pacific
  • swarming sharks and dolphins dive into frantic, balled-up fish; bait ball; Cocos Island, Costa Rica, Pacific
  • barb on a stingray's tail, sting can be extremely painful, caused death of Crocodile Hunter Steve Irwin, Cocos Island, Costa Rica, 09-2003
  • hundreds of hammerhead sharks school around a seamount; Sphyrna lewini; Cocos Island; Costa Rica; Pacific Ocean
  • hundreds of hammerhead sharks school around a seamount; Sphyrna lewini; Cocos Island; Costa Rica; Pacific Ocean