USGS - science for a changing world

Science Topics

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS
You are here: Categories > Topics > Organisms
Help
Animals
Multi-celled organisms of the kingdom Animalia with eukaryotic cells (cells with distinct nuclei containing genetic material and bounded by thin membranes) that are heterotrophic (obtaining energy from organic substances produced by other organisms).
Subtopics:
Invertebrates (63 items)
Vertebrates (209 items)
Related topics:


Results 151 - 160 of 261 listed by similarity [list alphabetically]
Marine nuisance species: colonial tunicates of the genus Didemnum (a sea squirt) [More info]
Occurrence, photos, and characteristics of some species of the colonial tunicate genus Didemnum, nuisance species that reproduce rapidly and foul marine habitats (including shellfish aquacultures and fishing grounds), ship's hulls, and maritime structure
Mayflies of the United States [More info]
Links to checklists and species maps showing the distribution of mayflies in the United States with links to other information websites on mayflies and reference list.
Megafossils: vertebrates - technique of paleontological analyses [More info]
Brief description of vertebrates and use of their fossil bones and footprints to aid in dating strata in biostratigraphy and to decipher past climates and recreate ancient ecosystems in paleoecology, paleoclimatology and paleobiogeography.
Mercury Concentrations in Streams Found to Go Through Daily Cycles [More info]
Research findings and examples of application to real problems--highly variable conditions cause the production of toxic methyl mercury in the environment which accumulates in fish.
Mercury contamination of aquatic ecosystems [More info]
Fact sheet on mercury bioaccumulation and cycling in the environment. Also available in PDF format.
Mercury in the environment [More info]
Fact sheet on mercury and the environment, including toxic effects, risk to people and wildlife, sources of mercury, environments where methylmercury is a problem, and mercury contamination.
PDF Miscellaneous fungal diseases [More info]
Chapter of Field Manual of Wildlife Diseases on miscellaneous fungi with information on fungal skin and subcutaneous lesions or mycosis primarily in birds.
Modeling Climate Change and Sturgeon Populations in the Missouri River [More info]
Research to address effects of climate change on sturgeon population dynamics.
Mollusks [More info]
Information on mollusks and uses of the identification of fossil mollusks in the fields of biostratigraphy, geochronology, paleocoeanography, paleoecology and ecosystems history. Links to experts and related USGS projects.
Monitoring grizzly bear populations using DNA [More info]
Description of project monitoring the status of Greater Glacier National Park Area's grizzly bear and black bear populations using genetic techniques on DNA from bear hair or scats without handling bears, with photos and discussion of methods.
Result pages:FirstPrevious ... 10 11 12 13 14 15 16 17 18 19 20 21 ... NextAll
Alphabetical Index of Topics a b c d e f g h i j k l m n o p q r s t u v w x y z

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov/science//science/science.php?term=45&b=150&n=10
Page Contact Information: Ask USGS