Sweat bees have repeatedly gained and lost eusociality, a transition from individual to group
reproduction. Here we generate chromosome-length genome assemblies for 17 species …

Bee pollinators provide a critical ecosystem service to wild and agricultural plants but are
reported to be declining world‐wide due to anthropogenic change. Long‐term data on bee …

Life’s most dramatic innovations, from the emergence of self-replicating molecules to highly-integrated
societies, often involve increases in biological complexity. Some groups traverse …

Herein are described the nests and their contents of Xeromelissa nortina (Toro and Moldenke)
and of X. sielfeldi (Toro and Moldenke), found in the dry, high Atacama Desert of northern …

This contribution results from an investigation of four commercially obtained colonies of
Bombus (Pyrobombus) impatiens Cresson in an attempt to understand the functional anatomy …

This, the second study of the nesting biology of Lithurgus chrysurus Fonscolombe found at
Palmerton, Carbon Co., Pennsylvania, describes its nest construction, provisioning, egg …

Life’s most dramatic innovations, from the emergence of self-replicating molecules to highly-integrated
societies, often involve increases in biological complexity. Some groups traverse …

We identified an emerging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
variant by viral whole-genome sequencing of 2,172 nasal/nasopharyngeal swab samples …

During the evolution of the Earth, distinct geochemical reservoirs with different Nb/Ta ratios
have developed. Archean granitoids of the tonalite–trondhjemite–granodiorite (TTG) suite, …

… Read is coming to us from the Environmental Law Institute (ELI) in Washington, DC,
where he has worked for the last nine years. At ELI, Read worked in the Oceans Program …