Arizona is home to many precious animals and plants that make the state unique. However, some of these animals may need help to continue to live in the Grand Canyon State. Arizona is home to 75 ...

Easy to grow and enjoying a revival, cacti are spiky succulents that thrive on a sunny windowsill. Popular in the early decades of the 20th century, when there was a move away from all things ...

A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying glass. An illustration of a magnifying glass.

Around six species of barrel cacti, including the golden barrel cacti, are included in the genus Echinocactus and are indigenous to Mexico and the southwestern United States. Over 30 distinct species ...

This study aimed to compare the activity of ants during the rainy and dry seasons in a transitional environment (ecotone) at the interface of Cerrado and Caatinga biomes situated in the state of Piauí ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Brazil has a rich biodiversity, but many species remain to be discovered, studied and cataloged. In the Paraíba State, taxonomy studies on agaric fungi are still infrequent. Thus, this present work ...

Root morphological diversity can be studied at different scales: macroscopically (i.e., at the level of root architecture, length, branching angle, and number of secondary roots) and microscopically, ...

Moth species Opisthograptis moelleri. Photo by Sanjay Sondhi. A book on Moths of Tale Wildlife Sanctuary was released last month by Arunachal Pradesh principal chief conservator of forests R. K. Singh ...

Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia Coevolution of endosymbionts with their hosts plays an important role in the processes of ...

This site displays a prototype of a “Web 2.0” version of the daily Federal Register. It is not an official legal edition of the Federal Register, and does not replace the official print version or the ...