Did the students have a list of safe sites to use for their research, appropriate for their grade level? (thejournal.com)
To our knowledge, there is no published experimental evidence for safe sites on bees. (journals.plos.org)
It also should be verified whether there are differences in grooming activity and pollen deposition in safe sites of bees searching for nectar as well as in those of bees actively collecting pollen. (journals.plos.org)