Chronobiology
- Environmental entrainment demonstrates natural circadian rhythmicity in the cnidarian Nematostella vectensis
Summary: The subtidal anemone Nematostella vectensis exhibits strong circadian behavioral rhythms following entrainment in natural conditions. Corresponding transcriptional rhythms suggest that solar radiation drives physiological cycles in this sediment-dwelling animal.
- Entraining to the polar day: circadian rhythms in arctic ground squirrels
Summary: Arctic ground squirrels will rapidly entrain to the polar day, yet they are relatively insensitive to entrainment by abrupt light–dark transitions, which they generate naturally as a consequence of their semi-fossorial behavior.