FOXNews.com - Killer Chimps Make Spears, Hunt Bushbabies - Science News | Science & Technology | Technology News Scientists: Chimps hunt prey with spears - LiveScience - MSNBC.com
Truy cập ngày 1 tháng 1 năm 2009. ^ FOXNews.com - Killer Chimps Make Spears, Hunt Bushbabies - Science News | Science & Technology | Technology News ^ Scientists: Chimps hunt prey with spears - LiveScience - MSNBC.com