Fig. 3
From: Humidity-tolerant rate-dependent capillary viscous adhesion of bee-collected pollen fluids

Water uptake and loss of bee pollen adhesive stored in high and low humidity environments. Images of the aqueous phase droplet (aqueous extract) without oily phase coat (toluene extract) (a) and the aqueous phase droplet with the oily phase coat (b) on a polystyrene surface, stored at 75% RH for the first 12 h and at 15% RH for the next 12 h. The droplet was initially saturated at 45% RH for 2–3 days. The black scale bars represent 1 mm. c The measured droplet volumes are shown as a function of time