The cells that make up the walls of the finest of all lymphatic vessels have a lobate, oak leaf-like shape that makes them particularly resilient to changes in fluid volume. A similar cell shape also ...

Native plants are well-suited to the local climate and have symbiotic relationships with other organisms in the area.

Oak, alder and hornbeam will soon rot down, while sycamore, beech, horse chestnut and sweet chestnut take a little longer. Leaves from conifers and evergreen plants will take between two and three ...

On the terraces just above San Onofre State Beach, you can usually see springtime monkey-flower blossoms in various shades of ...

When the leaves start to change colour from green to brown or red, you know they're going to fall off soon. Ivy: So why do some plants stay green all year round? Do they not like to lose their leaves?