Chase Dekker / Humpback Whale (Megaptera novaeangliae) pod gulp feeding on Northern Anchovy (Engraulis mordax), Monterey Bay, California

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska

Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska

Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...

Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...

Solvin Zankl / Honey bees (Apis mellifera) forming living bridge, Kiel, Germany, June.

Solvin Zankl / Honey bees (Apis mellifera) forming living bridge, Kiel, Germany, June.

Ingo Arndt / Black garden ants {Lasius niger} feeding on cricket Germany, Europe

Tony Wu / Humpback whales (Megaptera novaeangliae) bubble net feeding with mouths open at surface, example of cooperative hunting, Chatham Strait, Alaska, USA July

Bence Mate / Leaf cutter ants (Atta sp) carrying pieces of fern, reflected in water, Costa Rica.

Bence Mate / Leaf cutter ants (Atta sp) carrying plant matter, Costa Rica.

Bence Mate / Leafcutter ants (Atta sp) colony harvesting pieces of a banana leaf, Costa Rica.