Hosted on MSN22m
Second type of bird flu found in US dairy cowsExperts said it raises new questions about wider spread and the difficulty of controlling infections in animals and the ...
Hosted on MSN5m
Hard bites and slow songs: How beak size affects the singing and evolution of songbirdsWe can say that, in general, large-billed species produce fewer syllables per second; they sing at lower trill rates. But ...
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