As its name suggests, Himalayan balsam is from the Himalayas and was introduced here in 1839. It now an invasive weed of riverbanks and ditches, where it prevents native species from growing.

The largest of the UK wrasse species, the ballan wrasse with its striking patterning is a delight for any rocky reef snorkeller or shallow water diver!

The guelder-rose is a small tree of hedgerows, woods, scrub and wetlands. It displays large, white flowers in summer and red berries in autumn, which feed all kinds of birds, including Bullfinches…

The classic fairy tale toadstool, this red and white fungus is often found beneath birch trees in autumn.

Fel mae ei enw yn Saesneg, ‘Himalayan balsam’, yn awgrymu, mae ffromlys chwarennog yn dod o'r Himalayas ac fe'i cyflwynwyd yma yn 1839. Mae bellach yn chwyn ymledol ar lannau afonydd a…

Cuttlefish are related to squids and octopuses – a group of molluscs known as cephalopods. You may have seen the chalky internal shell, called a cuttlebone washed up on beaches around the UK.…