ADRIAN BICKER / SCIENCE PHOTO LIBRARY ADRIAN BICKER / SCIENCE PHOTO LIBRARY
Male solitary bees (Melitta haemorrhoidalis) grouped together in a Campanula flower for shelter through the night. They tend to stay there until the temperature increases during the following morning. Females only use the pollen from Campanula flowers to provide the chambers in their underground nests.
Model release not required. Property release not required.