The search for nectar costs insects a lot of energy, so they have to be as efficient as possible. Colorful patterns on the petals can help with that. Be it mallow, foxglove or forget-me-not: many ...

Bees rely on simple decision rules, using color as the first clue when choosing flowers and adding more cues only when needed.

Cosmos come in loads of colors that are easy to grow, but these cultivars offer more than the most common varieties: blended ...