Bumblebees could be shrinking because of exposure to a widely used pesticide, experts at the University of London say.
- There's a worry smaller bees will be less effective at foraging for nectar and carrying out their vital task of distributing pollen.
- Tests which showed how a pesticide called pyrethroid stunted the growth of worker bumblebee larvae, causingthem to hatch out reduced in size.
"Our result, revealing that this pesticide causes bees to hatch out at a smaller size, is of concern as the size of workers produced in the field is likely to be a key component of colony success, with smaller bees being less efficient at collecting nectar and pollen from flowers."
Pyrethroid pesticides are commonly used on flowering crops to prevent insect damage.
More top news
Police say they have traced four drivers who are thought to have hit the woman, and added that a fifth vehicle may also have been involved.
Police are trying to trace two men after two homophobic attacks on gay men in Walthamstow
Two London Boroughs make it into the top 15 places to live in the UK.