Discover the Extraordinary World of Nudibranchs
The closer you look, the more remarkable they become.
Brilliant colours. Extraordinary shapes. Bizarre behaviours. Hidden relationships.
For many divers and underwater photographers, spotting a nudibranch is one of those moments that can stop a dive in its tracks.
But what you see is only part of the story.
Why are they so colourful?
What do they eat?
How do they find a mate?
How can an animal without a shell survive among predators?
Why do some steal stinging cells from their prey, while others harness the power of sunlight?
Behind every photograph is an extraordinary piece of natural history waiting to be understood.
Understanding Nudibranchs and Other Sea Slugs takes you beyond simply identifying these remarkable animals and reveals the fascinating lives they lead.
BEYOND STUNNING PHOTOGRAPHY
But what are you actually seeing?
Once you understand what nudibranchs are doing, an ordinary encounter underwater becomes something much more interesting.
A brightly coloured animal crawling across a sponge may be feeding.
A pair sitting side by side may be mating.
A delicate spiral nearby may contain hundreds or thousands of eggs.
Those strange structures on its back may be breathing organs, weapons, camouflage or part of an elaborate chemical defence system.
This book was created to explain those stories.
It brings together decades of observation, research and diving experience to show not simply what nudibranchs look like, but how they live.
Extraordinary Solutions to Life Without a Shell
Nudibranchs are among the most visually spectacular animals in the ocean, yet their beauty disguises an astonishing range of survival strategies.
- Some manufacture powerful chemicals.
- Some use the defences of animals they eat.
- Some imitate their surroundings.
- Some cultivate microscopic algae within their bodies.
- Some prey upon animals that appear far better armed than themselves.
- Others have developed extraordinary relationships with sponges, corals, hydroids, anemones and countless other creatures sharing their underwater world.
Understanding these relationships transforms the way you see them.
GAINING THE KNOWLEDGE
For People Who Want to Know More
Whether you are a diver who regularly encounters nudibranchs, an underwater photographer fascinated by their extraordinary forms, a marine naturalist, researcher, student or simply someone captivated by life beneath the surface, this book has been created to reward curiosity.
It is a book to browse for pleasure, study for information and return to whenever something underwater makes you wonder:
“What is actually going on here?”
More Than a Field Guide
Understanding Nudibranchs and Other Sea Slugs is an all-new reference of more than 500 pages by renowned nudibranch researchers and divers David Mullins and David Behrens.
Rather than concentrating simply on identification, the book explores the biology, behaviour and ecology behind these remarkable animals.
Discover how nudibranchs:
• find and consume their prey
• reproduce and lay their extraordinary egg masses
• defend themselves without the protection of a shell
• use colour as camouflage, warning and deception
• interact with other marine organisms
• exploit some of the ocean's most unusual food sources
• adapt to remarkably specialised ecological niches
And much more.
This is a limited run, first edition hard cover. A beautiful study reference that every marine and diving enthusiast will want to own.
A Remarkable Visual Record
Nudibranchs command attention.
Throughout the book, spectacular underwater photography brings their world to life, supported by detailed explanatory illustrations that make complex behaviours and biological processes easier to understand.
More than 500 species
Are used as examples in extraordinary cross-section of nudibranchs and other sea slugs from across the marine world.
Over 1,200 images
Showing not only species, but behaviours, feeding, reproduction, habitats and ecological relationships.
More than 120 diagrams
Created to reveal structures, processes and behaviours that photography alone cannot easily explain.
Over 500 pages
A substantial reference created for people who genuinely want to understand these animals.
Written From a Lifetime Beneath the Surface
Authors David Mullins and David Behrens bring together scientific knowledge, decades of diving experience and countless observations of nudibranchs in their natural environment.
The result is a book that connects marine science with what divers actually encounter underwater.
Complex biology becomes understandable.
Behaviour becomes recognisable.
. . . Animals that were already beautiful, become even more fascinating.
Understanding Nudibranchs and other Sea Slugs
Biology and Natural History
by David Mullins and David Behrens
Your Nudibranch Dive will Never Look Quite the Same
The real pleasure of understanding nature is enhanced when more knowledge changes what you notice.
You begin seeing behaviours that once went unnoticed.
You recognise relationships between animals and their prey.
You understand why a nudibranch is found on a particular sponge, hydroid or coral.
You notice egg masses, feeding scars and defensive structures.
And suddenly a tiny animal only a few centimetres long becomes part of a much larger story.
Understanding Nudibranchs and Other Sea Slugs was created to tell that story.
Look closer. Understand more.
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