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Colonial marine hydrozoan showing polyps with tentacles extended and gonothecae. Location: Photographed in captivity, this species is found on the coast of NW Europe and eastern USA.Copyright: © Robert Brons / Biological Photo Service Agency Code: 38-055 AGPix ID: AGPix_BiPhSeTe41_0001.jpg Photo Alignment: 35mm (vertical) Comments: Hydrozoa are related to other cnidarians such as jellyfish and anemones - a major group of predators in the world's oceans that are well represented in our files. The individual animals in this colony are specialized for various activities. |
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Live radiolarian from the Red Sea, a single cell showing endoplasm, ectoplasm, radial spines (spicules) and extended pseudopodia. Small, round objects in the endoplasm are cells of symbiotic zooanthellae. Light micrograph, phase contrast. Scientific name: Phylum Sarcodina, Class Acantharea - species not identifiedLocation: Eilat, Israel Copyright: © Robert Brons / BPS Agency Code: 38-587 AGPix ID: AGPix_BiPhSeTe41_0002.jpg Photo Alignment: 35mm (horizontal) Comments: As sarcodines (in the Kingdom Protista), radiolaria are related to foraminiferans, heliozoans and amoebas. They are major elements of microscopic aquatic life and are usually included among "zooplankton." The symbiotic zooanthellae are algal cells that contribute the products of photosynthesis while gaining protection. |
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Transverse section of a Haversian system in human compact bone, showing osteocytes with extensions. Light micrograph, Schmorl's stain. Copyright: © Robert Brons / BPSAgency Code: 38-173 AGPix ID: AGPix_BiPhSeTe41_0003.jpg Photo Alignment: 35mm (horizontal) Comments: The agency collection in the zoological sciences includes extensive coverage of animal histology (tissues), including human histology, in the form of stained tissues in light micrographs. |
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Colonial fresh water ciliate, showing branching stalks that contract simultaneously. Light micrograph, phase contrast. Scientific name: Zoothamnium sp.; Phylum CiliophoraCopyright: © Robert Brons / BPS Agency Code: 38-638 AGPix ID: AGPix_BiPhSeTe41_0004.jpg Photo Alignment: 35mm (vertical) Comments: One-celled organisms known as protozoa are usually grouped in the Kingdom Protista. Among other ciliates in stock are members of the genera Paramecium, Vorticella, and Tetrahymena. |
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Adult wolf spider Scientific name: Lycosa sp.; Class Chelicerata, Subclass Arachnida, Order Araneae [spiders], Family LycosidaeLocation: Captive (Tucson, Arizona) Copyright: © Peter J. Bryant / BPS Agency Code: 31-871 AGPix ID: AGPix_BiPhSeTe41_0005.jpg Photo Alignment: 35mm (horizontal) Comments: Peter Bryant specializes in macrophotography of diverse insects, spiders, and other arthropods. |
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Williston's bee fly, a bee mimic. Scientific name: Poecilanthrax willistoni; Class Insecta, Order Diptera [flies], Family BombyliidaeLocation: Captive (Upper Newport Bay, California) Copyright: © Peter J. Bryant / BPS Agency Code: 31-1372 AGPix ID: AGPix_BiPhSeTe41_0006.jpg Photo Alignment: 35mm (horizontal) Comments: Flies that have evolved to mimic the appearance of bees are avoided by predators that do not wish to tangle with bees. Mimicry does not have to be exact to ward off a predator that may only get a brief glance of the animal or may not wish to risk a sting that would cause it so suffer more than the food is worth. |
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California mantis, eating a house cricket. Scientific name: Stagmomantis californica; Class Insecta, Order Orthoptera, Family MantidaeLocation: Captive (Orange County, California) Copyright: © Peter J. Bryant / BPS Agency Code: 31-364 AGPix ID: AGPix_BiPhSeTe41_0007.jpg Photo Alignment: 35mm (horizontal) Comments: As effective insect predators, mantises are often useful in biological control of pest species. |
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Golden California poppies, purple owl's-clover, and yellow goldfields provide a vivid springtime display in the western Mojave Desert. Scientific name: Eschscholzia californica, Castilleja exserta, Lasthenia californicaLocation: Antelope Valley, California Copyright: © Jon Mark Stewart / BPS Agency Code: 42-1505 AGPix ID: AGPix_BiPhSeTe41_0008.jpg Photo Alignment: 35mm (vertical) Comments: Photographer Jon Stewart wrote, photographed, and published the book "Colorado Desert Wildflowers" and is working on a similar title for the Mojave Desert. We stock numerous photos of plants both rare and common taken by him in the vast deserts of the American Southwest, California, and Northern Mexico. |
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Granite formations weathered by wind and other elements in the southern California desert. Scientific name: quartz monzoniteLocation: Jumbo Rocks Area, Joshua Tree NP, California Copyright: © Jon Mark Stewart / BPS Agency Code: 42-319 AGPix ID: AGPix_BiPhSeTe41_0009.jpg Photo Alignment: 35mm (vertical) Comments: In addition to extensive coverage of Joshua Tree, one of the newest national parks in the United States, our collection includes major geological features of all deserts and major national parks in the United States. |
