Summary: Wild migrating Arctic char can rapidly adjust the temperature sensitivity of their hearts; this rapid cardiac thermal plasticity may help migratory fishes like Arctic char mitigate short-term thermal challenges.
Summary: Post-emergent sea turtles may have the ability to distinguish between seawater types originating from within and beyond the continental shelf. This ability could have a goal-recognition function.
Summary: During the first wintering migration, common frogs apparently have no innate direction, but they possess a behavioral program where local orientation cues dominate at first and global cues at later stages of migration.
The flavonoid rutin protects the bumble bee Bombus impatiens against cognitive impairment by imidacloprid and fipronil
Highlighted Article: Prophylactically feeding bumble bees with rutin protects their learning and memory performance against oral exposure to insecticides with different mechanisms of action.
Seasonal adjustments in body mass and basal thermogenesis in Chinese hwameis (Garrulax canorus): the roles of temperature and photoperiod
Summary: Ambient temperature, rather than photoperiod, is the primary driving force of basal thermogenesis in Chinese hwameis; an increase in basal thermogenesis is associated with an increase in cellular metabolic capacity.
The role of neuropeptides in regulating ecdysis and reproduction in the hemimetabolous insect Rhodnius prolixus
Summary: Neuroendocrine regulation of ecdysis in Holometabola is conserved in the hemimetabolous insect Rhodnius prolixus but these neuropeptides have no role in ovary maturation, indicating differences in the regulation of reproduction in Hemimetabola.
Development of dim-light vision in the nocturnal reef fish family Holocentridae. I: Retinal gene expression
Summary: Coral reef fishes in the family Holocentridae remodel their retina at the molecular level to adapt to a nocturnal lifestyle during development.
Development of dim-light vision in the nocturnal reef fish family Holocentridae. II: Retinal morphology
Summary: Coral reef fishes in the family Holocentridae remodel their retina at the cellular level to adapt to a nocturnal lifestyle during development.
Protein storage and reproduction increase in grasshoppers on a diet matched to the amino acids of egg yolk protein
Summary: Grasshoppers fed diets that match the amino acids in their eggs reproduce more, and also store more protein.
Summary: A new method for quantitative studies of planarian electrotaxis shows that Dugesia japonica move toward the cathode. This behavior is enhanced by removal of the head.
Intraspecific investigation of dehydration-enhanced innate immune performance and endocrine stress response to sublethal dehydration in a semi-aquatic species of pit viper
Highlighted Article: Intraspecific investigation of the effects of sublethal dehydration on innate immune performance and corticosterone in a pit viper shows dehydration-enhanced innate immune performance is conserved and baseline corticosterone is correlated with plasma osmolality.
Summary: Ultraviolet radiation exposure in amphibian larvae generates detrimental carryover effects on body condition and relative telomere length post-metamorphosis, a mechanism that may influence amphibian population dynamics.
Defensive shimmering responses in Apis dorsata are triggered by dark stimuli moving against a bright background
Summary: The shimmering response in Asian giant honey bees is elicited only when a dark object above a threshold size moves against a bright background in sufficient ambient light conditions, with no evidence of habituation of this response.
Spatial uniformity of action potentials indicates base-to-apex depolarization and repolarization of rainbow trout (Oncorhynchus mykiss) ventricle
Summary: Spatial uniformity of action potential durations and base-to-apex propagation of activation with a relatively slow velocity of propagation indicates no special ventricular conduction pathway in the trout ventricle.