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  1. Two hundred years ago, on November 17, Connecticut ship captain Nathaniel Palmer spotted the Antarctic continent, one of three parties to do so in 1820. Unlike explorers Edward Bransfield and Fabian von Bellingshausen, Palmer was a sealer who quickly saw economic opportunity in the rich sealing grounds on the Antarctic Peninsula.

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  2. A trio of researchers at the University of California has found that zebra finches are able to remember up to 42 bird voices based only on their vocalizations. In their paper published in the journal Science Advances, K. Yu, W. E. Wood and F. E. Theunissen describe experiments they conducted with captive zebra finches and what they learned about their memory abilities.

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  3. According to a new Finnish study, different groups of insectivores compete for the same type of food. Researchers of the University of Turku, Finland, and the Finnish Museum of Natural History made a discovery by comparing birds, bats and dragonflies that forage in the same area in Southwest Finland. These very distantly related predators consumed the same insect groups, such as flies, mosquitoes, and other dipterans. The results shed new light on the decline in insect populations, because a remarkable portion of insectivores may actually be in greater danger than previously believed.

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  4. Migratory birds flying south provide an impressive example of cooperative behavior that saves power and energy. In the past, it was impossible for scientists to study this phenomenon in a natural environment. Researchers who guided young northern bald ibises to their wintering grounds have now succeeded for the first time in obtaining a comprehensive data set. A better understanding of this behavior is also of fundamental importance in respect of climate change.

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  5. A pair of Queen Mary University of London psychologists are reminding modern scholars of the work conducted by an accomplished pioneer of comparative animal intelligence study: Charles Henry Turner, a Black biologist who conducted animal cognition studies in the late 1800s and early 1900s. Hiruni Samadi Galpayage Dona and Lars Chittka have published a Perspective piece in the journal Science outlining the work done by Turner and the obstacles that stood in the way of his research.

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  6. A new study from the Cornell Lab of Ornithology confirms that most birds—but not all—synchronize their migratory movements with seasonal changes in vegetation greenness. This is the first study of its kind to cover the Western Hemisphere during the year-long life cycle of North American migratory birds that feed on vegetation, seeds, nectar, insects, or meat. The findings were published today in the Journal of Animal Ecology.

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