Spiny squat lobster
A bizarre half lobster/half crab, this squat lobster is one of the true stunners of the rocky shore!
Spiral wrack
This brown seaweed lives high up on rocky shores, just below the high water mark. Its blades are usually twisted, giving it the name Spiral Wrack.
Spirorbis tube worm
Ever noticed lots of little white spirals on seaweed fronds on rocky shores? These are tiny tube worms!
Spotted cowrie
This small sea snail is easily identifiable by the 3 brown spots on the top of its shell.
Spotted Flycatcher
Watch the deadly accurate flying of the spotted flycatcher in woodlands, gardens and parks. It sits quietly on a perch waiting for an unsuspecting insect to fly by, deftly dashing out to seize it.
Spotted ray
The spotted ray is one of the smallest species of skate, growing to only 80 cm.
Spurdog shark
This slender shark gets its name from the spines in front of its dorsal fin. It can use these spines to defend itself by curling in a bow and striking at a predator.
Spurge laurel
Despite its name, Spurge laurel is not a laurel - it just looks like one! It has glossy, dark green leaves and black, poisonous berries, and can be found in woodlands in southern England, in particular.
St George's mushroom
A lovely pale cream colour to begin with these stout mushrooms begin to turn a buff colour and the cap surface will crack as they age.
St Mark's fly
The St Mark's fly is small, black and shiny. It is so-called because it emerges around St Mark's Day, April 25th. Large numbers of adults can be found in woodland edges, hedgerows, fields and wetlands.
Stag beetle
Famous for its fearsome jaws, the stag beetle does not have the bite to match. Look for it in woods, parks and gardens in South East England in summer. Males display their massive jaws to attract females and duel with their rivals.
Star ascidian
One of the most eye-catching sights on the rocky shore, this mind-boggling species resembling a collection of beautiful pressed flowers is actually a colony of individual animals!