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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.

Highlighted Article: Prophylactically feeding bumble bees with rutin protects their learning and memory performance against oral exposure to insecticides with different mechanisms of action.

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.

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.

Summary: Coral reef fishes in the family Holocentridae remodel their retina at the molecular level to adapt to a nocturnal lifestyle during development.

Summary: Coral reef fishes in the family Holocentridae remodel their retina at the cellular level to adapt to a nocturnal lifestyle during development.

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.

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.

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.

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.

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