Variation in thermal courtship activity curves across individuals exceeds variation across populations and sexes.

The dynamics of mating interactions can vary in response to a wide variety of environmental factors. Here, we investigate the potential for individuals to vary consistently in the environmental conditions under which they actively engage in courtship. Specifically, we quantify variation in how courtship activity changes with environmental temperature across levels of biological organization in Enchenopa binotata treehoppers.

Responses of the in vitro turtle brain to visual and auditory stimuli during severe hypoxia.

North American pond turtles (Emydidae) are renowned for their ability to survive extreme hypoxia and anoxia, which enables several species to overwinter in ice-locked, anoxic freshwater ponds and bogs for months. Centrally important for surviving these conditions is a profound metabolic suppression, which enables ATP demands to be met entirely with glycolysis. To better understand whether anoxia limits special sensory functions, we recorded evoked potentials in a reduced brain preparation, in vitro, that was perfused with severely hypoxic artificial cerebral spinal fluid (aCSF).

Rare high branching pattern from the first part of the right axillary artery.

A 77-year-old female cadaver was observed to have a rare branching pattern of the right axillary artery (AA). The first part of the AA typically gives off only a superior thoracic artery (STA) but was observed to give off three branches in the case: a lateral thoracic artery (LTA), a thoracoacromial trunk, and a large common trunk (CT). The LTA travelled to provide a variant STA to the 1st and 2nd intercostal spaces.

A Unique Case of Incomplete Bifid Ureter and Associated Arterial Variations.

. Urogenital and vascular anomalies, including a left duplex kidney and a left aberrant renal artery that gave rise to the left ovarian artery, were observed in a 77-year-old female cadaver during a routine dissection. .