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Usually, birds of a feather flock together -- but in the Amazon, some flocks feature dozens of species of all shapes and colors. A new study singles out one reason why these unusually diverse flocks exist: lookout species that call in alarm when they spot dangerous predators.
Scientists show how two different species of Australian fairy-wrens not only recognize individual birds from other species, but also form long-term partnerships that help them forage and defend their shared space as a group.
A discovery has provided significant insight into the overall genome structure of dinosaurs. By comparing the genomes of different species, chiefly birds and turtles, a research team was able to determine how the overall genome structure (i.e. the chromosomes) of many dinosaur species might have looked through a microscope.
