Soil with lots of worms in it doesn't flood easily after heavy rain because the water drains away thanks to all the worm holes.Plants can drown if there's no air in the soil.
One teaspoonful of good soil holds more than one million living things.
Have you met an oligochaetologist? That's another name for a worm expert.
How can a little grub get inside your apple? The codling moth lays eggs on the tiny, unripe fruit. When the apple develops, the grub burrows inside and lives happily in the apple as it grows — until you take a bite. Yuk!
Ever wondered why the caterpillar of the cabbage white butterfly is green? It's because it makes it harder for the birds to see them on the green leaves.
What's photosynthesis? It's a chemical process that takes place in a leaf's cell. Sunlight mixes with water, soil nutrients and carbon dioxide to make food for the plant.
A bird of paradise (Strelitzia reginae) can't fly. It's a plant with colourful flowers that look like exotic birds on top of stiff stems.
When touched, the leaves of the sensitive plant (Mimosa pudica) fold up and can take some time before they unfurl again.
Tortured willow (Salix matsudana ‘Tortuosa') and corkscrew hazel (Corylus avellana ‘Contorta') have curiously curled and twisted stems. They can be cut during their dormant winter season, dried and used as floral decorations or for displaying light ornaments, especially for Christmas.
Pussy willows are also loved for the fluffy catkins that decorate their stems in spring. All willows should be planted with care and never where there is any risk of these water-hungry plants invading drains.
String of hearts (Ceropegia woodii) is a delightful basket plant with leaves that do indeed resemble tiny hearts.
— Courtesy of Yates