Lions are sending coded messages in their roars, and AI can finally hear what we can’t

Machine learning is revolutionizing wildlife research by enabling accurate classification of lion roars. New studies identify distinct vocal phases and individual lion signatures using acoustic metrics, offering non-invasive population monitoring and conservation insights. This technology decodes the complex language of lions, enhancing our understanding of their social lives and protection.

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Flying back to the US after winter break? Documents students must carry to avoid secondary inspection

International students returning to the US after winter break must carry proper documentation to avoid secondary inspection at ports of entry. Key documents include a valid passport, F-1 visa, and Form I-20 with a current travel signature. Supporting documents such as financial proof, enrollment verification, SEVIS fee receipt, and OPT-related paperwork are recommended. Secondary inspection…

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