Bigger bumblebee eyes have better vision, yet their field of view, sensitivity, and resolution do not all simply scale up with eye size, being improved locally instead.
Unlike humans and starlings which use memories of both absolute and relative information to decide between options in novel contexts, bumblebees rely only on the remembered ordinal ranking of options.
Marcel Ethan Sayre, Rachel Templin ... Stanley Heinze
Serial-section electron microscopy uncovers the intricate neural network of the bumblebee central complex, revealing highly conserved projection patterns as well as novel circuit elements potentially unique to bees.
Michael JM Harrap, Sean A Rands ... Heather M Whitney
Flowers of different plant species show distinct and highly diverse patterns of temperature across their surfaces, and bumblebees are able to differentiate between these previously unnoticed but widespread floral cues.
Behavioral studies reveal that bumblebees distinguish between continuous and interrupted strings by using a combination of image matching and associative learning.
HIV transmissions into intervention communities from control communities in the Botswana/Ya Tsie trial were similar to the reverse at baseline, and 10 times more common post-baseline, concordant with a predicted benefit of a universal test-and-treat HIV prevention intervention.
After insemination, honeybee queens experience a rapid reduction in vision and flight performance, consistent with an ongoing sexual conflict over the number of mating flights that queens embark on.