Complex sentence: Under hot conditions, heat from the thorax is dissipated through the head; the bee regurgitates a droplet of hot internal fluid--a "honeycrop droplet"--which immediately cools the head temperature by 10 ° C (18 F).
Split into simpler sentences: Under hot conditions, heat from the thorax is dissipated through the head. The bee regurgitates a droplet of hot internal fluid--a "honeycrop droplet"--which immediately cools the head temperature by 10 ° C (18 F).