The Helmet Urchin Handbook
Raphael Murphy
Sold by PBShop.store US, Wood Dale, IL, U.S.A.
AbeBooks Seller since 7 April 2005
New - Soft cover
Condition: New
Ships within U.S.A.
Quantity: Over 20 available
Add to basketSold by PBShop.store US, Wood Dale, IL, U.S.A.
AbeBooks Seller since 7 April 2005
Condition: New
Quantity: Over 20 available
Add to basketNew Book. Shipped from UK. Established seller since 2000.
Seller Inventory # L2-9798196818233
Master the secrets of the ocean's most resilient survivor with the definitive guide to the Helmet Urchin.
Deep within the violent "white water" of the Indo-Pacific's volcanic shores lives a creature that has defied the laws of traditional biology. The Helmet Urchin Handbook is a professional and comprehensive exploration of Colobocentrotus atratus, an organism that traded the long, sharp needles of its ancestors for a revolutionary suit of interlocking shingle armor.
This handbook isn't just a biological survey; it is an architectural and engineering deep-dive into how life adapts to the most extreme mechanical pressures on Earth. From the hydraulic masterclass of its suction-powered tube feet to the "whole-body eye" that allows it to see without pupils, every chapter unveils a new layer of evolutionary genius.
Inside this definitive resource, you will discover:
Engineering Marvels: How the urchin's prolate spheroid shape and tessellated shingles utilize fluid dynamics to turn crashing waves into "negative lift," pinning it safely to the basalt.
Biological Alchemy: The "Calculus of Calcite"—a look at how these animals grow magnesium-rich armor and self-sharpening teeth to graze on solid volcanic rock.
Hidden Worlds: An exploration of the urchin’s complex microbiome and the tiny "passengers" that live within its armored valleys.
Cultural & Modern Significance: The sacred Hawaiian traditions of Hā‘uke‘uke stewardship paired with modern biomimicry applications in earthquake-resistant architecture.
Conservation Horizons: Cutting-edge strategies for monitoring remote reefs using AI and drone photogrammetry to protect these intertidal sentinels from climate change.
Whether you are a marine biologist, an engineering student interested in biomimicry, or a coastal enthusiast, The Helmet Urchin Handbook offers an unparalleled look at the "Art of Tenacity."
Grab your copy today and uncover the hidden science of the surf’s most impenetrable fortress.
"About this title" may belong to another edition of this title.
Returns Policy
We ask all customers to contact us for authorisation should they wish to return their order. Orders returned without authorisation may not be credited.
If you wish to return, please contact us within 14 days of receiving your order to obtain authorisation.
Returns requested beyond this time will not be authorised.
Our team will provide full instructions on how to return your order and once received our returns department will process your refund.
Please note the cost to return any...
If you are a consumer you can withdraw from the contract in accordance with the following. Consumer means any natural person who is acting for purposes which are outside his trade, business, craft or profession.
Information regarding the right of withdrawal
Statutory right to withdraw
You have the right to withdraw from this contract within 14 days without giving any reason.
The withdrawal period will expire after 14 days from the day on which you acquire, or a third party other than the carrier and indicated by you acquires, physical possession of the last good or the last lot or piece.
To exercise the right of withdrawal, electronically fill in and submit a clear statement on our website, under "My Purchases" in "My Account". We will communicate to you an acknowledgement of receipt of such a withdrawal on a durable medium (e.g. by e-mail) without delay.
To meet the withdrawal deadline, it is sufficient for you to send your communication concerning your exercise of the right of withdrawal before the withdrawal period has expired.
Effects of withdrawal
If you withdraw from this contract, we will reimburse to you all payments received from you, including the costs of delivery (except for the supplementary costs arising if you chose a type of delivery other than the least expensive type of standard delivery offered by us).
We may make a deduction from the reimbursement for loss in value of any goods supplied, if the loss is the result of unnecessary handling by you.
We will make the reimbursement without undue delay, and not later than 14 days after the day on which we are informed about your decision to withdraw from this contract.
We will make the reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of such reimbursement.
We may withhold reimbursement until we have received the goods back, or you have supplied evidence of having sent back the goods, whichever is the earliest.
You shall send back the goods or hand them over to PBShop.store US, Springfield Gardens, New York, U.S.A., +44 1285 712917, without undue delay and in any event not later than 14 days from the day on which you communicate your withdrawal from this contract to us. The deadline is met if you send back the goods before the period of 14 days has expired. You will have to bear the direct cost of returning the goods. You are only liable for any diminished value of the goods resulting from the handling other than what is necessary to establish the nature, characteristics and functioning of the goods.
Exceptions to the right of withdrawal
The right of withdrawal does not apply to:
Books are shipped from our US or UK warehouses. Delivery estimates allow for delivery from either location.
| Order quantity | 7 to 14 business days | 7 to 14 business days |
|---|---|---|
| First item | £ 0.00 | £ 0.00 |
Delivery times are set by sellers and vary by carrier and location. Orders passing through Customs may face delays and buyers are responsible for any associated duties or fees. Sellers may contact you regarding additional charges to cover any increased costs to ship your items.