Jim Brandenburg / Monarch (Danaus plexippus) butterfly group resting on Giant Sunflower (Helianthus giganteus) during migration, Iowa

Roger Powell / Cloudless sulphur butterfly (Phoebis sennae) feeding on nectar from a thistle flower head, Cedar Key, Levy County, Florida, USA, April

Pascal Kobeh / Sunflower sea star (Pycnopodia helianthoides) and two leather stars (Dermasterias imbricata) among giant plumrose anemones (Metridium giganteum), Alaska, USA, Gulf of Alaska. Pacific ocean.

LYNN M. STONE / Giant Sunflower (Helianthus annuus) in bloom; Pecatonica, Illinois, USA, July

LYNN M. STONE / Giant Sunflower (Helianthus annuus) in bloom; Pecatonica, Illinois, USA, July

LYNN M. STONE / Giant Sunflower (Helianthus annuus) in bloom; Pecatonica, Illinois, USA, July

LYNN M. STONE / Giant Sunflower (Helianthus annuus) in bloom with honeybee; Pecatonica, Illinois, USA, July

Jim Brandenburg / Monarch (Danaus plexippus) butterfly feeding on a Giant Sunflower (Helianthus giganteus), South Dakota

Alex Mustard / Orange sunflower star (Pycnopodia helianthoides) beneath a forest of giant bull kelp (Nereocystis luetkeana). Browning Pass, Port Hardy, Vancouver Island, British Columbia, Canada. Queen Charlotte Str...

David Hall / A young Giant Pacific Octopus (Enteroctopus dofleini) attempting to cross over and avoid touching a row of huge Sunflower sea stars (Pycnopodia helianthoides), Hanson's Island, British Colulmbia,...

David Hall / Sea fleas (Chromopleustes oculatus) on dorsal surface of a Giant sunflower seastar, Port Neville, Johnstone Strait, British Columbia, Canada. March.