Floris van Breugel / Monarch butterflies (Danaus plexippus) over winter on Eucalyptus and Monterey Cypress trees near Pismo Beach, San Luis, California, USA December.. When temperatures warm up enough, they will embark on...

Pal Hermansen / Dropwort (Filipendula vulgaris) growing in the boot of an old abandoned car in 'car graveyard', Bastnas, Sweden, July. Winner of the Portfolio category in the Melvita Nature Images Awards competition...

Jeff Rotman / Wolf eel (Anarrichthys ocellatus) eating Red Sea Urchin (Strongylocentrotus franciscanus). Queen Charlotte Strait, British Columbia, Canada, North Pacific Ocean.

Jeff Rotman / Wolf eel (Anarrichthys ocellatus) eating Red Sea Urchin (Strongylocentrotus franciscanus). Queen Charlotte Strait, British Columbia, Canada, North Pacific Ocean.

Rolf Nussbaumer / Queen butterfly {Danaus gilippus} pair mating on Golden Crownbeard flower (Verbesina encelioides) Rio Grande Valley, Texas, USA

Michael Durham / Bumblebee (Bombus morrisoni) queen, flying toward Sweet Pea flowers in the Deschutes National Forest, Oregon

Konrad Wothe / Honey Bee (Apis mellifera) colony and queen on honeycomb, North America

Mark Moffett / Fire Ant (Solenopsis geminata) colony with queen ant, workers and pupae, Florida

Mark Moffett / Fire Ant (Solenopsis geminata) nest showing large queen, workers and pupa, Florida

Norbert Wu / Morning Sun Star (Solaster dawsoni) fed on by Rose Anemone, Queen Charlotte Islands, Canada

LYNN M. STONE / Queen conch shell on Florida beach, USA

Doc White / Monarch butterfly, (Danaus plexippus), migrating group resting in tree Pismo Beach, California, USA. January.