The Nagoya University study headed by Takashi Yoshimura revealed that birds start singing in spring when days are longer. Their behavior was linked to a hormone called Thyrotrophin which is triggered during longer days. The process results in the expansion of the male testes in birds, which make them sing.
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The ability of Europe to dominate military and commercial relations with Asia
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Downtown Dubai is the city’s busy tourism hub, home to the towering Burj Khalifa skyscraper, with its observation deck, and the dancing Dubai Fountain, where crowds gather to watch music and light shows. The sprawling Dubai Mall offers global fashion brands and casual eateries, while Emaar Boulevard.
Pangea is the supercontinent Alfred Wagner proposed in his theory
