348 To survive frigid nights, hummingbirds cool themselves to low temperatures.

347 Importance of old bulls: leaders and followers in collective movements of all-male groups in African savannah elephants (Loxodonta africana).

346 New Guinea has the world’s richest island flora.

345 Viburnum tinus Fruits Use Lipids to Produce Metallic Blue Structural Color.

344 Condors flap for only 1% of their flight time, specifically during takeoff and when close to the ground.

343 Egyptian fruit bats appear to use a cognitive map.

342 Cognitive map–based navigation in wild bats revealed by a new high-throughput tracking system.

341 Experimental evidence of dispersal of invasive cyprinid eggs inside migratory waterfowl.

340 Drosophila as a model for studying cystic fibrosis pathophysiology of the gastrointestinal system.

339 An insight into natural koala drinking behaviour.

338 Female toads engaging in adaptive hybridization prefer high-quality heterospecifics as mates.

337 Sons accelerate maternal aging in a wild mammal.

336 Analysis of thousands of living and fossil marine animals suggests that resistance to extinction has led to high taxonomic richness.

335 Ultrasonic signals associated with different types of social behavior of mice.

334 The unique genetic adaptation of the Himalayan wolf to high-altitudes and consequences for conservation.

333 Small within the largest: brain size and anatomy of the extinct Neoepiblema acreensis, a giant rodent from the Neotropics.

332 Ocean sentinel albatrosses locate illegal vessels and provide the first estimate of the extent of nondeclared fishing.

331 A cell atlas of the adult Drosophila midgut.

330 Evidence of tool use in a seabird.

329 How flight feathers stick together to form a continuous morphing wing.

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