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The New Neotropical Companion ²⁶

$ 39.95 USD

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The North Pacific Killer Whale Behaviors field

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The North Pacific Marine Mammals field

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The Oceans: A Deep History ²⁶

$ 18.95 USD

The Oceans: A Deep History ²⁶

$ 18.95 USD

The 4.4-billion-year history of the oceans and their role in Earth's climate system It has...

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The Ornithologist's Dictionary ²⁵

$ 35.75 USD

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The Outer Limits of Reason: What Science, Mathematics, and Logic Cannot Tell Us

$ 29.95 USD

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The Oxford Handbook of Animal Organization Studies (Oxford Handbooks)

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The Pivotal Generation: Why We Have a Moral Responsibility to Slow Climate Change Right Now ²⁶

a partir de $ 19.95 USD

The Pivotal Generation: Why We Have a Moral Responsibility to Slow Climate Change Right Now ²⁶

$ 19.95 USD

Climate change is the supreme challenge of our time. Yet despite growing international recognition of...

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The Princeton Encyclopedia of Dinosaurs: Ornithischians ²⁶

$ 49.95 USD

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The Princeton Encyclopedia of Dinosaurs: Sauropods ²⁶

$ 45.00 USD

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The Princeton Encyclopedia of Dinosaurs: Theropods ²⁶

$ 55.00 USD

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The Princeton Field Guide to Dinosaurs Third Edition (Princeton Field Guides) ²⁶

$ 39.95 USD

The Princeton Field Guide to Dinosaurs Third Edition (Princeton Field Guides) ²⁶

$ 39.95 USD

The bestselling Princeton Field Guide to Dinosaurs remains the must-have book for anyone who loves...

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The Princeton Field Guide to Mesozoic Plants ²⁶

$ 35.00 USD

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The Princeton Field Guide to Predatory Dinosaurs ²⁶

$ 32.00 USD

The Princeton Field Guide to Predatory Dinosaurs ²⁶

$ 32.00 USD

An authoritative illustrated guide to the fearsome predators that dominated the Mesozoic world for 180...

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The Princeton Field Guide to Pterosaurs ²⁶

$ 29.95 USD

The Princeton Field Guide to Pterosaurs ²⁶

$ 29.95 USD

Once seen by some as evolutionary dead-enders, pterosaurs were vigorous winged reptiles capable of thriving...

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The Princeton Field Guide to Sauropod and Prosauropod Dinosaurs ²⁶

$ 35.00 USD

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The Restless Cell: Continuum Theories of Living Matter ²⁶

$ 85.00 USD

The Restless Cell: Continuum Theories of Living Matter ²⁶

$ 85.00 USD

An essential introduction to the physics of active matter and its application to questions in...

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The Rise and Fall of Animal Experimentation: Empathy, Science, and the Future of Research

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The Rules of the Flock: Self-Organization and Swarm Structure in Animal Societies

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The Science of Animal Welfare

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The Sixth Element: How Carbon Shapes Our World ²⁶

$ 27.95 USD

The Sixth Element: How Carbon Shapes Our World ²⁶

$ 27.95 USD

A cosmic perspective on carbon—its importance in the universe and our lives. When we think...

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The Social Wasps of North America, Central America, and the Caribbean, Second Edition ²⁶

$ 35.00 USD

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The Sounds of Life: How Digital Technology Is Bringing Us Closer to the Worlds of Animals and Plants

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The Sounds of Life: How Digital Technology Is Bringing Us Closer to the Worlds of Animals and Plants ²⁶

$ 39.95 USD

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The Spirit of the Hive: The Mechanisms of Social Evolution

$ 39.95 USD

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The Turtles of Mexico: Land and Freshwater Forms

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The Unfeathered Bird

$ 49.95 USD

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The Unpredictable Species: What Makes Humans Unique

$ 29.95 USD

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The Violinist Thumb

a partir de $ 16.00 USD

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The Voices of Nature How and Why Animals Communicate

$ 32.00 USD

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The War of the Sexes: How Conflict and Cooperation Have Shaped Men and Women from Prehistory to the Present

a partir de $ 17.95 USD

The War of the Sexes: How Conflict and Cooperation Have Shaped Men and Women from Prehistory to the Present

$ 24.95 USD

As countless love songs, movies, and self-help books attest, men and women have long sought...

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The Warbler Guide

$ 29.95 USD

The Warbler Guide

$ 29.95 USD

Warblers are among the most challenging birds to identify. They exhibit an array of seasonal...

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The West without Water: What Past Floods, Droughts, and Other Climatic Clues Tell Us about Tomorrow

$ 29.95 USD

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The Wingsnappers

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The World Atlas of Deserts and Drylands ²⁶

$ 60.00 USD

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The World Atlas of Rivers, Estuaries, and Deltas ²⁶

$ 60.00 USD

The World Atlas of Rivers, Estuaries, and Deltas ²⁶

$ 60.00 USD

A stunningly illustrated atlas of the world’s rivers, estuaries, and deltas, and their ecosystems. From...

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The World Atlas of Trees and Forests: Exploring Earth's Forest Ecosystems ²⁶

$ 60.00 USD

The World Atlas of Trees and Forests: Exploring Earth's Forest Ecosystems ²⁶

$ 60.00 USD

The earth’s forests are havens of nature supporting a diversity of life. Shaped by climate...

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The World's Rarest Birds

$ 45.00 USD

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ThunderBolt U1 Storm & Lightning Detector Expedition Package - Discontinued

a partir de $ 1,120.95 USD

ThunderBolt U1 Storm & Lightning Detector Expedition Package - Discontinued

ThunderBolt U1 Storm & Lightning Detector Expedition Package - Discontinued

$ 1,120.95 USD

The ThunderBolt U1 Storm & Lightning Detector is totally self-contained and detects the storm directly using the electromagnetic signals of the lightning to provide instant storm warning. Portable and easy to use, the proprietary software turns the complexities of storm tracking into simple text messages displayed on a backlit LCD, detecting storms out to distances of 75 miles, determining distance and approach speed (ETA), and immediately warning a user when a storm becomes a local threat. The ThunderBolt also features a TIME TO CLEAR function which lets the user know when it is safe to resume outdoor activities. Unit comes in a rugged, hard carry case.

Specifications
In the Box
Required Items
Optional Items

- Highest grade durable plastic
- Fully gasketed (water resistant)
- 75 mile storm detection range
- Text message library containing over 50 messages for different storm situations
- Calculates approach speed and ETA
- Connector for Storm Vector wireless warning system
- ThunderBolt Storm & Lightning Detector U1 (1)
- Yellow, waterproof lockable Pelican carrying case (1)
- Aquapac waterproof case (1)
- 110-volt or 220-volt AC power adapter (1 of your choice)
- 9-volt Duracell PROCELL battery (3)
- Rechargeable extended service lithium ion battery pack (1)
- 12-volt DC car power adapter (1)
- Black MOLLE field carry pouch (6.5" by 4.5" and is 2" wide (expands to 4" wide) (1)
- Deskstand (1)
- High-brightness NEMO waterproof LED flashlight (1)
- Instruction manual (1)
None
- ThunderBolt Rechargeable Lithium Battery Pack
- Duracell PROCELL 9-Volt Battery

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ThunderBolt U1 Storm & Lightning Detector Standard Package - Discontinued

a partir de $ 650.95 USD

ThunderBolt U1 Storm & Lightning Detector Standard Package - Discontinued

ThunderBolt U1 Storm & Lightning Detector Standard Package - Discontinued

$ 650.95 USD

The ThunderBolt U1 Storm & Lightning Detector is totally self-contained and detects the storm directly using the electromagnetic signals of the lightning to provide instant storm warning. Portable and easy to use, the proprietary software turns the complexities of storm tracking into simple text messages displayed on a backlit LCD, detecting storms out to distances of 75 miles, determining distance and approach speed (ETA), and immediately warning a user when a storm becomes a LOCAL threat. The ThunderBolt also features a TIME TO CLEAR function which lets the user know when it is safe to resume outdoor activities. Unit comes in a rugged, hard carry case.

Specifications
In the Box
Required Items
Optional Items

- Highest grade durable plastic
- Fully gasketed (water resistant)
- 75 mile storm detection range
- Text message library containing over 50 messages for different storm situations
- Calculates approach speed and ETA
- Connector for Storm Vector wireless warning system
- ThunderBolt Storm & Lightning Detector U1 (1)
- Hard Case (1)
- 110-volt or 220-volt AC power adapter (1 of your choice)
- 9-volt Duracell PROCELL battery (1)
- Instruction manual (1)
- Black MOLLE field carry pouch (6.5" by 4.5" and is 2" wide (expands to 4" wide) or Desk Stand (1 of your choice)
None
- ThunderBolt Rechargeable Lithium Battery Pack
- Duracell PROCELL 9-Volt Battery
- MOLLE Field Carry Pouch (Included in your choice)
- Deskstand (Included in your choice)

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Timefulness: How Thinking Like a Geologist Can Help Save the World ²⁶

$ 16.95 USD

Timefulness: How Thinking Like a Geologist Can Help Save the World ²⁶

$ 16.95 USD

Few of us have any conception of the enormous timescales of our planet’s long history,...

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Titley Scientific Song Meter Chorus Acoustic and Ultrasonic Recorder ²⁶

a partir de $ 590.50 USD

Titley Scientific Song Meter Chorus Acoustic and Ultrasonic Recorder ²⁶

Titley Scientific Song Meter Chorus Acoustic and Ultrasonic Recorder ²⁶

$ 590.50 USD

Titley Scientific Chorus Wildlife Acoustic and Ultrasonic Recorder

An affordable, robust, and customizable solution designed for monitoring bats, birds, frogs, and other vocalizing wildlife in demanding field conditions.

The Chorus by Titley Scientific redefines wildlife recording by combining ultrasonic bat detection and acoustic recording for birds and herpetofauna into a single, compact device. Engineered to survive tough environments, it features weather-resistant housing and low-profile microphones that can be user-replaced in seconds directly in the field. With industry-leading battery life, the Chorus can record for up to 40 nights in full-spectrum ultrasonic mode or 300 hours in acoustic mode using just 4 AA batteries. Its internal OLED screen allows for standalone configuration without needing phones or Bluetooth, while the built-in GPS ensures every file is geotagged and recording schedules automatically adjust to local sunrise and sunset times.

Key Features

Multi-Species Recording: Capture birds and frogs during the day and bats at night using customizable automatic schedules.
Customizable Dual-Channel: Includes one acoustic microphone with the option to add a second (ultrasonic or acoustic) for stereo or dual-purpose recording.
Ultra-Robust Design: Weatherproof housing with microphones designed to minimize damage from livestock or wildlife chewing.
Integrated GPS: Automatic geotagging of files, precise sunset/sunrise calculations for scheduling, and transect mode for mobile recording.
User-Replaceable Parts: Replace microphones in the field in seconds without needing to return the unit for technical service.
Exceptional Efficiency: Operates on 4 AA batteries, eliminating the need for bulky external power packs during long deployments.

Specifications
In the Box
Required Items
Optional Items

Brand	Titley Scientific
Audio Channels	2 Channels (Mono, Stereo, or Acoustic/Ultrasonic)
Acoustic Response	20 Hz – 20 kHz (-24dB sensitivity)
Ultrasonic Response	10 kHz – 140 kHz (Useable response)
Battery Life	Up to 40 nights (Ultrasonic) / 300 hours (Acoustic)
Power Supply	4 AA batteries
Storage	SD Card slot
Sensors	Built-in GPS and Temperature sensor
Recording Formats	Full Spectrum (WAV) and Zero Crossing (for bats)

- 1x Chorus Wildlife Recorder
- 1x Omnidirectional acoustic microphone
- 1x Military-grade water-resistant wind sock
- 1x Magnetic lanyard (for status checks)
- AA batteries (4 units)
- SD memory card
- Additional omnidirectional ultrasonic microphone
- Second acoustic microphone for stereo recordings
- Flexible-gooseneck microphone extender
- Anabat Insight analysis software (Free download)

EO20260423

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Tolcide PS Biocides Test Kit ²⁵

$ 556.25 USD

Tolcide PS Biocides Test Kit ²⁵

$ 556.25 USD

Tolcide PS: Rapid Test Kit for Biocides with THPS

Effectively measures tetrakis(hydroxymethyl)phosphonium sulfate (THPS) in freshwater and saltwater systems. Ideal for oilfields, cooling towers, and industrial applications.

The Tolcide PS Biocides Test Kit by Solvay is a precise analytical tool designed to determine concentrations of THPS (tetrakis(hydroxymethyl)phosphonium sulfate), a widely used biocidal agent in water treatment. It uses a direct-reading iodometric titration system and can be applied in both freshwater and saltwater environments, including oilfield industries, paper mills, and cooling towers. With a sensitivity of up to 2 ppm and a capacity of 60 tests, this kit is essential for monitoring active THPS levels and maintaining safe and effective conditions in industrial water systems.

Key Features:

Accurate THPS Detection: Based on direct iodometric titration for reliable results in the field or laboratory.
Measurement Range: From 0 to 100 ppm, with a resolution of 2 ppm.
Versatile Applications: Works in fresh or salt water for oilfields, towers, pulp and paper plants.
Complete Kit: Includes all necessary reagents and accessories to get started immediately.
Interference Treatment: Includes zinc acetate to remove hydrogen sulfide if present.

Specifications
In the Box
Optional Items
Documents

Specification	Detail
Test Factor	THPS in Tolcide PS biocides
Method	Direct Reading Titrator (iodometry)
Range/Sensitivity	0–100 ppm / 2 ppm resolution
Number of Tests	60
Number of Reagents	5
Interferences	H₂S (removed with zinc acetate)
Weight with Packaging	1 lb

- 240 mL Borate Buffer Solution (Code: 4135-J)
- 120 mL PSSA Solution (Code: 4134-J)
- 30 mL Starch Indicator Solution (Code: 4170WT-G)
- 60 mL Iodine Solution 0.025N (Code: 6377-H)
- 15 mL Zinc Acetate 2N (Code: 3843-E)
- 1 Plastic test tube with caps and volume marks (Code: 0715)
- 3 Pipettes of 1 mL (Code: 0354)
- 1 Direct Reading Titrator 0–100 (Code: 0381)
- 1 Iodine dispensing cap (Code: 0601)
- Filters for precipitates if Zinc Acetate is used
- Safety gloves and protective goggles
- Instructions