A bee's "alarm clock" has been documented for the first time by researchers.

Scientists have recorded the honeycomb vibration of the bee, which prompts others in the hive to start getting busy.

The signal, known as the Dorso-Ventral Abdominal Vibration, alerts other bees to start foraging for food or become more active when the insects drum on the comb.

Bees send signals to each other to get busy

It had previously only been visible to the naked eye by opening up the hive and had only ever been measured during the day for very short periods.