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Results 361 - 370 of at least 413
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The Stream Study
The Stream Study provides a method to determine the water quality of a stream based on the collection and identification of stream-bottom macroinvertebrates, includes an online identification key for common stream-bottom macroinvertebrates - Izaak Walton League of America
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Tree Identification Guide
Arbor Day Foundation
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Tree Identification Manual
online pdf article - University of Nebraska Extension Circular (This circular is intended to help interested persons to become better acquainted with some native and introduced trees of Nebraska)
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Trees and shrubs of the RAAS, Nicaragua
online pdf document - Field Museum Rapid Color Guides
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Trees of the Pacific Northwest
The purpose of this site is to help you identify common conifers in the Pacific Northwest ; includes dichotomous key - Oregon State University
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Trepadoras y Epifitas de la Cordillera Azul
online pdf document - Field Museum Rapid Color Guides ; a pcitorial guide to climbers and epiphytes
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Trepadoras, Epifitas del Centro Rio Amigos
online pdf document - Field Museum Rapid Color Guides ; apictorial guide to climbers and epiphytes
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Trepadoras, Hierbas y Epifitas de Federico Roman
online pdf document - Field Museum Rapid Color Guides
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Trepadoras, Hierbas y Epifitas de las Serranias Cofan
online pdf document - Field Museum Rapid Color Guides ; a pictorial guide to the climbers, herbs and epiphytes of Serranias Cofan
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Turtles of the World
An update of the standard work of the same title by Ernst and Barbour (1989). This project contains extensive descriptions of all turtle taxa known at the time of writing (1997), including details on recognition, karyotype (chromosome number and morphology), distribution, geographic variation, habitat, natural history, and conservation status.
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organizations.
For basic answers to who's who in the Animal Kingdom.
