Cá bơi ngược dòng
Nếu nhìn kỹ, bạn sẽ thấy bức ảnh này ghi lại cảnh tượng có một không hai: những con cá hồi quẫy lên khỏi mặt nước bằng những “bước nhảy” cao hàng mét, chui vào trong ống sau đó lội ngược chặng đường gần chục thước để tới đầu bên kia, bất chấp nước xối xả ngược dòng.
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u5bhu5nhur0=