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Soaring Chocolate Prices / Crows Can Count up to Four
Soaring Chocolate Prices / Crows Can Count up to Four0Soaring Chocolate Prices

Chocolate prices are soaring globally. That’s because climate change and aging trees are causing problems in Ghana and Cote d’Ivoire, the world’s major cocoa producers. Cacao tree diseases and El Nino are also dropping the countries’ productivity.


Soaring Chocolate Prices / Crows Can Count up to Four5Crows Can Count up to Four

German researchers discovered that crows can count up to four. In an experiment, the researchers taught three crows to recognize and react to numerals, producing the same number of caws as the numeral they saw.


Amelia Moon
Staff Reporter
kids/1718683347/1613368191
 
인쇄기능입니다.
1. Why are chocolate prices soaring? Explain in detail.
2. What have German researchers discovered about crows? What did they do in an experiment?
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