Researchers applying a mascara brush to the hairs of a Sowell's short-tailed bat (Carollia sowelli) to test methods to capture pollen that bats may carry as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

carollia sowelli natural reserve tropical rainforest scientific research sample scientist researcher naturalist adult woman man person alone head hand pollen carry catch glove indoor profile shot night carollia mammology march month la selva biological station sowell's short tailed bat carollia sowelli nature reserves nature reserve tropical rain forests ombrophile forest shade plants rain forest rainforest rain forests ombrophile forests scientific researches scientific studies scientific study samples specimen specimens sampling samplings scientists researchers naturalists adults women men human beings persons human being human presence human presences human humans single lonely only solo one lone heads hands pollens transport hold carried carrying held holding transporting transported transportation caught catching arrest arrested arresting gloves inside indoors profile sights profile sight profile shots profile view profile views side view nights nightime mammologue mammologues mammologist mammologists mammologic mammologics mammalogy mammalogies mammalogist mammalogists mammalogue mammalogues least concern species estación biológica la selva environment protection environment management biodiversity management environment tropical forest forest area science analysis stage of development individual enumeration general morphology morphology organism morphology zoology morphology botany behavior protection shot ambiance phyllostomidae chiroptera mammalia cynodontia therapsida eupelycosauria synapsida tetrapoda tetrapodomorpha rhipidistia sarcopterygii euteleostomi gnathostomata vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota discipline low risk species heredia province costa rica central america america new world leaf nosed bat bat mammal therapsid synapsid vertebrate chordate wild animal animal