Slugs by Michael Blencowe for Sussex Wildlife Trust

I’ve had a strange fascination with slugs since I was a little boy. Back then I believed that they were homeless snails that had lost their shells. It turns out I was right. Sort of. The whole eviction process had started as far back as the murky Mesozoic when some land snails cast off the shackles of a shell and evolved into slugs for some truly independent living. Sure, shells are great for protection and will help you to avoid drying out but they’re clunky and require calcium to construct. Without them you can roam anywhere and (to namecheck another mollusc) the world’s your oyster.

The slug’s shell has never been completely lost — a fragment remains hidden under their skin, a tiny, shrunken souvenir of their snail ancestry. Another link to their slimy dynasty is that all slugs, like all snails, are both male and female. As hermaphrodites, they possess both sets of sexual organs and this means that, if the situation dictates, they can go it alone and simply self-fertilise to produce their offspring. A true state of independence. Self-fertilisation creates a clone – or in a slug’s case hundreds of clones – but the problem with inbreeding is a lack of genetic variability. Clones all possess the same weaknesses. An entire slug population can be wiped out by the same parasites and pathogens. To produce varied and resilient offspring, most slugs go in for the more old-fashioned approach of finding a partner for a quick rustle in the undergrowth.

But one garden slug species has turned this chore into art – a flamboyant celebration of a lack of independence. The spotted and striped Leopard Slugs start their performance by chasing each other around a tree, giving each other sonic, sensuous strokes and cheeky nibbles. Then they climb, shimmy along a branch, and descend on a rope made of their own mucous. Here, hanging in mid-air, the slugs evert their sexual organs, entwining them to create a moonlit globe. This graceful, balletic trapeze performance must be one of the most mesmerising sights on our planet. If you search hard enough, you can find beauty in the strangest places. Still, if I was strolling through the woods at night, I’d hate to walk into it face-first.

Sussex Wildlife Trust is a conservation charity for everyone who cares about nature in Sussex. Founded in 1961, we have worked with local people for over half a century to make Sussex richer in wildlife. We rely on the support of our members.

Please consider joining us. Your membership will help us challenge decisions that threaten wildlife, care for more than 30 nature reserves, and inspire the next generation about the wonders of the natural world. It’s easy to join online at sussexwildlifetrust.org.uk/join

Hoverflies by Michael Blencowe for Sussex Wildlife Trust
Everyone loves bees, don’t they? Knowing that our bees are in decline has
prompted protests and petitions and highlighted the important service these
buzzing pollinators provide to our planet. Without them our crops and
ecosystems would collapse. Yet many other pollinators that provide the same
service don’t get the same level of public support. So today I’m waving my flag
for the hoverflies.
For some reason, they’re not as loveable as bees. Perhaps it’s because most of
the time people mistake them for wasps. This isn’t totally our fault because
that’s exactly what the hoverflies want you to think. The 283 species of hoverfly
in the UK come in many shapes, colours and sizes but most of them sport
yellow and black stripes, making them easily confused for wasps, bees, hornets
and bumblebees. It’s a strategy called Batesian mimicry and was first proposed
by Leicestershire lepidopterist Henry Bates in 1861. Hoverflies are harmless.
They don’t sting and can’t bite but they have discovered you don’t actually have
to be dangerous to deter predators – you just have to look like something that’s
dangerous.

Yet their devious mimicry isn’t the most incredible thing about them. Their
wings are the things. Hoverflies (like all flies) have just two wings (half as
many wings as bees and wasps). Whereas other flies keep their wings straight,
hoverflies incline theirs to create an angled downward stroke at a remarkable
rate of 120 beats per second. This allows hoverflies to fly to a most amazing
place: nowhere. Hoverflies have become the motionless masters of mid-air.
It’s not all sitting around in the sky though. During their few days of life,
hoverflies fight, fornicate and feed and while busy collecting energy-giving
nectar and protein-rich pollen they inadvertently provide that vital pollination
service to our flowers and crops. And hoverflies have earned the title of ‘The
Gardeners Friend’ because about 40% of them have a larval stage which is
basically a tiny crawling stomach that roams around your flowerbed eating
aphids. Pollination, pest control – next thing you know these beneficial little
insects will be mowing the front lawn for us too.
So why not thank these friendly flies by planting some of their favourite flowers
in your garden – parsley, fennel, borage, hebe, sedum and alliums – and consider
putting in a pond no matter how small. Do your bit for the pollinators and
they’ll keep the world working for us.

(Sussex Wildlife Trust is an independent charity caring for wildlife and habitats
throughout Sussex. Founded in 1961, we have worked with local people for over
half a century to make Sussex richer in wildlife.
We rely on the support of our members to help protect our rich natural heritage.
Please consider supporting our work. As a member you will be
invited to our regular wildlife walks and also enjoy free events, discounts on
wildlife courses, Wildlife magazine and our Sussex guide book, Discovering
Wildlife. It’s easy to join online at sussexwildlifetrust.org.uk/join)

Water Shrew by Michael Blencowe for Sussex Wildlife Trust
I love Jaws, the 1975 movie which sent three men out into the Atlantic on a fishing
boat in search of a marauding Great White Shark. There’s another aquatic monster
hunting in the ponds and shallow streams of Sussex. But to find a Water
Shrew…you’re gonna need a smaller boat.
Water Shrews weigh 15g and measure just 16cm. Unlike other shrews they have an
amazing ability to swim and hunt underwater. They’re covered in dense fur – vital
insulation against the cold and wet. This sleek wetsuit also traps air bubbles,
transforming the shrew into a furry Aero helping it stay buoyant. Powerful, extra
hairy hind feet propel this tiny torpedo through the water.
Water Shrews and Great White Sharks have a common feature that sets them apart
from their close relatives. They both have a striking demarcation between their
dark upperparts and their white underparts. Looking from above, their black backs
blend with the pond bottom or seabed. From below, their pale bellies make them
invisible in the sunlit water. It’s a submarine survival strategy that helps conceal
both hunters and hunted. And the Water Shrew is both.

With sharp, red-tipped fangs, a Water Shrew’s jaws are as fearsome as any shark’s.
But the Water Shrew has a trick up its teeth. It’s Britain’s only venomous mammal.
When it bites it injects a stupefying saliva which subdues its victims. In Jaws, the
grizzled skipper Quint (Robert Shaw) relates the chilling true tale of the torpedoed
WWII cruiser Indianapolis, which sank leaving hundreds of sailors adrift in sharkinfested waters. Well, my mate Barry was once bitten by a Water Shrew in
Newhaven and his finger went all tingly for about two hours. OK, it doesn’t
exactly compare, but the fact that a tiny shrew can make such an impact on a
human is pretty impressive.
Slice open a dead shrew’s stomach and rummage inside and you’ll find bits of
beetle legs, snail shells, and fishbones. They are relentless, frenetic hunters. If the
shrew goes without a meal for more than an hour it will die. What we are dealing
with here is a perfect engine, an eating machine. All this machine does is swim and
eat and make little shrews. Between April and September, the mating of the shrew
can produce 2-3 litters of 3-15 young. They live a fast, brief life. Few of them will
survive for more than a year.
The best way to see a Water Shrew is to sit by a Sussex stream as the sun sets.
Bring a couple of friends and some Apricot Brandy, share some tall tales, and wait
for a shrew to strike!

Stinging Nettles, by Michael Blencowe of the Sussex Wildlife Trust

In the shadows under the Oak trees my enemy awaits. There are hundreds of them, huddled together in a silent, ferocious mob. With their drab green leaves and insignificant flowers, the Stinging Nettle is a joyless plant infamous only for its ability to inflict pain. I can almost hear these nettles straining at their roots, desperately trying to reach me because I am in possession of something they crave: a pair of bare legs. When I started writing this article, I realised that I hadn’t been stung by a Stinging Nettle for so long that I had forgotten what it felt like. So, dear reader, just for you I am wading into a nettle patch in a pair of shorts.

As my legs brush the underside of the nettles’ leaves, I break the fragile tips off hundreds of hollow hairs, and I’m injected with histamine, serotonin and acetylcholine, with a splash of formic acid. This volatile cocktail acts like napalm on my knees – my skin itches and blisters and that familiar fiery, tingling, pulsing pain sears up my spinal cord. The plant does not inflict this agony as some sadistic vendetta against schoolchildren and writers. The nettle’s hairy, hurtful suit of armour is a defence mechanism against hungry herbivores.

Despite our hatred for the Stinging Nettle, we have found many uses for it over the centuries as cloth, medicine, and food. Seventeenth century Sussex herbalist Nicholas Culpeper claimed nettles – which “can be found by feeling in the darkest night” – cured everything from nosebleeds to leprosy. Celebrity chefs extol the virtues of vitamin-packed nettle soups, risottos and spanakopita. And the caterpillars of our most impressive butterflies enjoy munching on nettles too. Red Admirals, Peacocks, Commas and Small Tortoiseshells all depend on them.

Halfway through the nettle patch all this is offering me little comfort. If I focus my mind, I can rise above it and the waves of pain can start to feel strangely invigorating. But not for long and I soon start frantically searching for a cure. Rubbing mashed dock leaves on my legs has soothed my stings since I was a schoolboy, so I was surprised to read that it’s all a ruse. Scientists claim dock leaves are simply a placebo – and the searching and rubbing is just a distraction that numbs the pain.

Beyond the nettle patch I stumbled across an amazing glade of orchids, vibrant and stunning in the sunshine. In an instant the stinging stopped. Maybe it was all in my mind after all. Even when we are in our darkest night we need to keep pushing through the painful patches. There’s something surprising and soothing awaiting us on the other side.

Sussex Wildlife Trust is an independent charity caring for wildlife and habitats throughout Sussex. Founded in 1961, we have worked with local people for over half a century to make Sussex richer in wildlife.

We rely on the support of our members to help protect our rich natural heritage. Please consider supporting our work. As a member you will be invited to join Michael Blencowe on our regular wildlife walks and also enjoy free events, discounts on wildlife courses, Wildlife magazine and our Sussex guide book, Discovering Wildlife. It’s easy to join online at sussexwildlifetrust.org.uk/join