COVER PHOTO: Bushbuck (Tragelaphus sylvaticus) in Mozambique's Gorongosa National Park. Daskin et al. (Article e1549; doi:10.1002/ecm.1549) tracked movement and foraging behaviors of three closely related but different-sized spiral-horned antelopes: bushbuck, nyala (T. angasii), and kudu (T. strepsiceros). The authors found that behavioral metrics scaled allometrically with body mass, which in turn reduced spatial and dietary overlap among species. Allometric scaling of behavior may promote niche differentiation and species coexistence throughout the animal kingdom. Photo credits: Brett Kuxhausen / Gorongosa Media Project.

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封面照片：羚羊 ( Tragelaphus sylvaticus ) 在莫桑比克戈龙戈萨国家公园。达斯金等。（文章 e1549；doi:10.1002/ecm.1549）追踪了三种密切相关但体型不同的螺旋角羚羊的运动和觅食行为：羚羊、羚羊 ( T. angasii ) 和捻角羚 ( T. strepsiceros )。作者发现，行为指标随体重异速生长，这反过来又减少了物种间的空间和饮食重叠。行为的异速生长缩放可能会促进整个动物界的生态位分化和物种共存。图片来源：Brett Kuxhausen / Gorongosa Media Project。