Jan 27

#LoveSpecies nominee: pelagic thresher

Nominated by: Sharks4Kids

Why do you love it?

The pelagic thresher has a tail that can be as long as the body itself. It uses this tail to stun prey, which has earned them the nickname “ninja shark.” This amazing adaptation makes this animal truly unique.

What are the threats to pelagic thresher?

This shark is listed as Vulnerable (VU) on the IUCN Red List and the population is decreasing. They are targeted by commercial fisheries for their fins, meat, liver oil and skin. They are also caught as bycatch on tuna longlines. It is estimated that thresher shark fins make up 2-3% of the fins auctioned off in Hong Kong markets.

What are you doing to save it? Our team does not work directly with these sharks, but we are working to spread education and awareness about the species to students around the world. We are promoting the addition of all 3 species of thresher shark to the CITES Appendix II listing. We have also introduced a new

Our team does not work directly with these sharks, but we are working to spread education and awareness about the species to students around the world. We are promoting the addition of all 3 species of thresher shark to the CITES Appendix II listing. We have also introduced a new colouring fact sheeting to get students excited about this species.

VOTE NOW!

Jan 27

#LoveSpecies nominee: common cuttlefish

Nominated by: Marine Conservation Society UK

Why do you love them?

The common cuttlefish (Sepia officinalis) is an incredible creature that we believe deserves more love. Amongst the most intelligent invertebrates known, cuttlefish will definitely appreciate the love we give them.

Cuttlefish have incredible eyesight and an odd W-shaped eyelid that allows them to have panoramic vision. Despite their eyesight being advanced, it is thought that they are colour-blind, which is even more amazing as their skill in visual camouflage is unprecedented. Even in the dark, cuttlefish can detect textures and colour from the environment to help them camouflage. It is not truly understood how they can do this, but the cuttlefish clearly has a unique perspective and relationship with the physical world that we are yet to understand. This mysterious creature also has three hearts so clearly has the potential to return our love in a triple heartfelt way!

What are the threats to the common cuttlefish?

Cuttlefish, like other cephalopods, are extremely sensitive to environmental variability and their populations can fluctuate rapidly. In order to know how many cuttlefish we can catch, we must understand how various climate and ocean variables are changing and how cuttlefish react to those important variables. The acidity of the water is particularly important to cuttlefish as it affects the density of their cuttlebone and therefore impacts their buoyancy. If we catch too many cuttlefish any year, there may be too few adults to spawn the following years. Cuttlefish are more frequently fished for and are often caught as bycatch.

Often there is little data available about the level of cuttlefish catches per year. Having so little data is a problem as we often don’t know how many cuttlefish that we remove from our seas, making it difficult to understand how many are left to spawn in the future.

What we do to protect them?

One of our collective aims at the Marine Conservation Society is to raise awareness of important marine habitats, to create a network of marine protected areas (MPA’s) in the UK and encourage the government to legally establish and protect a network of habitats. One of our established areas lie below the white cliffs of Dover and offers an attractive habitat for the common cuttlefish. The intertidal and subtidal chalk has formed unique reefs, ledges, gullies and sand pits where young cuttlefish can thrive as they develop their amazing camouflage skills. Our campaigns also aim to highlight the importance of collecting data on commercial fishing and bycatch, which may prove valuable for the government to further protect cuttlefish and other species alike.

VOTE NOW!

Jan 27

#LoveSpecies nominee: sperm whale

Nominated by: Ocean Alliance

Why do you love it?

Sperm whales might not be as beautiful as some of their cousins, but they are enormously charismatic animals of immense power and grace, grafted into our legends and folklore through stories such as Moby Dick. When a sperm whales dives, it is descending to the deep, dark depths of our oceans: an alien world at the boundaries of human understanding. They are true Olympians of the natural world: the largest toothed predator to have ever existed on our planet, the largest brain of any animal ever and currently the loudest animal alive. We know of only one species which can dive as deep, for as long a period of time. Through their role in ocean food webs, we also know that sperm whales actually slow climate change!

What are the threats to sperm whales?

Whales in our oceans today face more threats than ever before. One of the biggest problems with studying sperm whales is that they live far out in the open ocean, far from land, and so it is almost impossible to tell exactly how their population is faring. Sperm whales face a particular risk from chemical pollution owing to the dual effects of bio-accumulation and bio-magnification. Most mammals, including humans and sperm whales, find it difficult to get rid of toxicants which enter their bodies, and over time these toxicants accumulate, a process known as bio-accumulation. Bio-magnification is a term which describes how doses of toxicants increase significantly each step up a food chain. As long-lived apex predators, sperm whales thus face a particular risk from these two processes.

As animals reliant on sound for finding food and communicating with other sperm whales, the impacts of an increasingly noisy ocean (owing to increases in human-caused sounds such as shipping, military sonar and seismic exploration) are to likely cause significant stress for sperm whales. Other threats include climate change, bycatch in fishing lines/nets and ship strikes.

What are you doing to save it?

Ocean Alliance has been working to protect whales and their ocean environment since 1971. After commercial whaling ended, our founder and president, Dr. Roger Payne, predicted that chemical pollution would replace the whalers harpoon as the greatest threat to whales. In response to this, from 2000-2005 Ocean Alliance carried out the Voyage of the Odyssey, a 5 ½ year research expedition which collected the first ever baseline data on pollution in our oceans from every major ocean basin using a single indicator species: sperm whales.

More recently, our efforts have switched to using drones to study whales. We believe that rapid recent advances in drone technology will create a new generation of powerful, cost-effective, non-invasive tools that will allow us to increase our understanding of whales, and how we might protect them, at a time when they need this desperately.

VOTE NOW!

Link to sperm whale species profile

Sep 30

Wildscreen recently worked with world-renowned street artist Louis Masai to create two beautiful murals in our hometown of Bristol, UK to mark the beginning of the Wildscreen Festival and raise awareness of two little-known endangered species. This painting event was part of Wildscreen’s Witness the Wild programme, a series of free-to-attend events from 21/09 – 28/10 in Bristol, celebrating wildlife art, photography and film.

Louis’ work mainly focusses on endangered species and he has painted everything from lovebirds to rhinos all over the world. As well as painting beautiful, realistic murals of animals, Louis has a trademark patchwork style which is the current focus of most of his work. Louis has a deep passion for the natural world that he expresses through his amazing artworks.

Pangolin

The first mural was painted on Stapleton Road in Easton, Bristol. As all of us in the Wildscreen office are extremely fond of pangolins, they seemed like the perfect choice for the first mural.

14536677_10153980124786172_570766830_o

The main threat to pangolins is the illegal wildlife trade. Their scales are used in Traditional Chinese Medicine, based on the false assumption that they are a cure for numerous diseases and ailments, despite the fact that they are made out of keratin, the same material as human nails and hair, and rhino horn. Pangolins are also eaten as a delicacy in Vietnam and China, and their habitat is quickly declining due to unsustainable logging, mining and human development.

It turned out that the timing of this pangolin mural was impeccable as just a few days later, there was good news for pangolins everywhere as every species was upgraded to CITES Appendix I, effectively banning all international trade. This new legal framework should help to protect wild pangolin populations, but you can help further by sharing your pangolin knowledge and telling people what they are. Unfortunately, not very many people know about pangolins so read up on them on our new pangolin topic page and watch our pangolin film, made in conjunction with Save Vietnam’s Wildlife, and tell the world what you know!

Green turtle

Our second mural was painted on Mina Road in St Werburghs, Bristol. This mural featured a green turtle. Sea turtles are one of the most ancient animals in the world and are believed to have existed on our planet for over 100 million years.

Turtle

Sea turtles are extremely unfortunate in that they are threatened by pretty much everything. Climate change is one of the main threats to sea turtles – the increased carbon dioxide level in the Earth’s atmosphere is causing ocean acidification which is altering the sea’s ecosystems and food web and, as with most reptiles, increased incubation temperatures lead to more females being born, which is skewing the sex ratio and leading to less successful mating. Plastic pollution is a major threat to sea turtles as they frequently mistake plastic litter for food which can cause major health issues, and they are also negatively affected by chemical pollution and oil spills. Sea turtles are often hit by boat traffic when they surface to breathe, and their coastal nesting habitats are threatened by development. Sea turtles are unsustainably hunted in many parts of the world and their eggs are taken from their nests.

Read up on ocean acidification and marine plastics on our topic pages to see what you can do to help sea turtles and other marine species.

If you live in Bristol please go and visit the murals and share your pictures using #wildscreenfest.

Come to our free bicycle-powered film screenings and open air wildlife photography exhibition in Bristol – check out the programme.

Follow us on Instagram to see what we’re up to

Share this blog to tell your friends and family about the plight of these endangered species.

Check out Louis’ website to see more of his amazing work.

 

Hannah Mulvany, Wildscreen Exchange Executive

Apr 25

Cephalopods are arguably the weirdest of all marine invertebrates. The name cephalopod literally translates to ‘head-footed’ in Greek, indicating just how strange members of this taxonomic class are, but nothing in their name indicates how incredibly intelligent they are. Their alien-like features are truly fascinating and cephalopods are commonly regarded as the most advanced of all invertebrates!

The weirdest one – nautilus (Nautilus pompilius)

Kicking off our list is the bizarre-looking nautilus, whose appearance resembles a cross between a snail and a shrimp. They are the only species of cephalopod to have retained their external shell, which means they cannot alter their appearance as well as their counterparts.

The invisible one – common cuttlefish (Sepia officinalis)

The common cuttlefish is a master of disguise, possessing the ability to transform its appearance to suit its surroundings in an instant. Check out this amazing talent in this video!

The deadly one – southern blue-ringed octopus (Hapalochlaena maculosa)

This species has one of the most potent venoms on the planet, 1000 times more powerful than cyanide, and there is no known antidote. The blue rings after which this species is named will only appear when an individual is disturbed and serve as a warning before it attacks. The helpless crab in this video finds this out the hard way!

The strangely familiar one – opalescent squid (Loligo opalescens)

You may have come into contact with this cephalopod more than any other – the opalescent squid is more commonly known to us as ‘calamari’. These small squids live in extremely large shoals and hunt by striking their prey with their tentacles.

The one-size-fits-all one – curled octopus (Eledone cirrhosa)

The ability of the curled octopus to transform and camouflage its body is truly fascinating – there is no gap too small or seaweed too colourful for this species! The curled octopus is also equipped with an ink jet they can utilise as a distraction when a predator is nearby. On top of all that, it also has an extremely toxic venom that it uses to paralyse its prey!

The colourful one – Carribean reef squid (Sepioteuthis sepioidea)

Commonly found in shallow reef waters, this intriguing species has enormous eyes and is known to have the largest eye-to-body ratio of the whole animal kingdom! Carribean reef squid communicate with each other by changing the colour of their skin.

The huge one – giant Australian cuttlefish (Sepia apama)

The giant Australian cuttlefish is largest cuttlefish species, reaching lengths of up to a metre.  Despite its large size, this species it is a master of disguise and can easily blend in with its  surroundings due to special pigment cells called chromatophores which allow it to change colour in an instant.

The even huger one – Humboldt squid (Dosidicus gigas)

A close relative of the giant squid, this species, also known as the ‘jumbo squid’, is a monster capable of growing up to 2 metres long and weighing over 50 kilograms! They can move at considerable speeds (up to 24km/h) and have been known to propel themselves out of the water and soar through the air to evade their predators which include whales, sharks, seals and swordfish.

The bright one – firefly squid (Watasenia scintillans)

This bioluminescent species is definitely deserving of a top 10 spot as it is responsible for one of the most spectacular light shows on the planet! Between March and June millions of firefly squid gather off of the coast of Japan, as well as hundreds of tourists, producing a natural spectacle like no other. The firefly squid also uses its bioluminescence to attract prey and select mates.

The strong one – North Pacific giant octopus (Enteroctopus dofleini)

Reaching lengths of up to 5 metres and weighing in at up to 50 kilograms, this monster octopus had to make the top 10! The photograph below is not photoshopped, this species does eat sharks! Its raw strength makes it capable of ripping apart shells and flesh with its tentacles or using its powerful ‘beak’ to make easy work of its prey. This, in tandem with its camouflaging talent, makes it a truly ferocious predator.

Have we missed out your favourite cephalopod? Let us know!

Discover more cephalopods on the Arkive website

Will Powell, Arkive guest blogger

About

RSS feedArkive.org is the place for films, photos and facts about endangered species. Subscribe to our blog today to keep up to date!

Email updates

Sign up to receive a regular email digest of Arkive blog posts.
Preferred frequency:

Arkive twitter

Twitter: ARKive