Cold-Clocked
These small mammals can drop their body temperature during daily bouts of torpor to 0°C - but when they're awake, they're not afraid to steal your trail mix
What are golden mantled ground squirrels?
To communicate the location of food sources to her sisters, honey bee foragers perform this maneuver inside of the hive
What is the waggle dance?
Though metabolic tissues like the liver shift their circadian timing in response to changes in food timing, this brain structure has generally been found to maintain its phase across diet changes
The hunt for the anatomical basis for circadian rhythms began in earnest after Janet Harker reported rhythms in headless inviduals of this species
What are cockroaches?
In mice, its negative arm consists of Per and Cry genes, but in fruit flies per and tim do the job
What is the transcription-translation feedback loop?
A rhythm that doesn't change its period much even when things cool down substantially is said to be this
What is temperature-compensated?
Honey bees develop measurable circadian rhythms around 10 days old -- around the time that this behavior begins
What is foraging?
These pancreatic cells, which secrete insulin, have been shown to maintain autonomous rhythms in culture
What are islet cells?
Using genetically- or environmentally-induced period variations, these types of experiments were critical for demonstrating the sufficiency of structures in governing circadian rhythms
What are transplantation studies?
This strategy was used by Vitaterna et al. in 1994 and Konopka & Benzer in 1971 to track down clock genes for the first time - not to create X-Men
What is mutagenesis?
When animals exit a torpor state, they return to this term for normal body temperature
What is euthermia?
The long-distance migration of this organism is notable for its trans-generational nature
This assay measures the response of an organism to an influx of carbohydrate
What is a glucose tolerance test?
The suprachiasmatic nucleus is considered the central clock in mammals, but evidence exists that this rhythmic phenomenon can persist without it
What is food entrainment?
First discovered in hamsters, we now know that this allele is a hyperactive variant of the Casein kinase 1ε
What is the tau mutation?
Hosted by Katmai National Park and the Katmai Conservancy, this annual event celebrates some seriously major Ursus as they prepare for winter
What is Fat Bear Week?
German for "migratory restlessness," this term describes the change in behavior exhibited by some captive birds during their migratory season
What is Zugunruhe?
During this stressful condition, rodents can recall timing information about previous food availability
What is food deprivation?
In some birds, the suprachiasmatic nucleus is joined by the retina and this other brain structure to form a dispersed central clock
What is the pineal gland?
The molecular clock of cyanobacteria, distinct from that of eukaryotes, is often referred to as this
Post-translational oscillator (PTO)
This biochemical ratio, which represents the change in rate that a reaction experiences with an increase of 10 degrees Celsius, has a very Scrabble-appropriate name
What is Q10?
This sturdy bird can travel over 8,000 miles in a single flight - the longest known continuous flight of any organism
What is the bar-tailed godwit?
This feature, which describes how well something responds to a glucose-uptake signal, is generally higher during the active phase (you hope!)
What is insulin sensitivity?
The rhythm in this term for molting was used as an output in brain transplant experiments performed in silk moths in 1979
What is ecdysis?
This filamentous fungi features a molecular clock mechanism similar to its fellow eukaryotes -- but with different genes
What is Neurospora crassa?