Offspring Defensive Investment Covaries With Brood Value in a Female Cobweb Spider
雌性蛛网蜘蛛的后代防御性投资与育雏价值相关摘要母体对后代防御的投资有望提高后代的生存率和亲本繁殖成功率。蛛网蜘蛛以碎屑为基础建造钟形巢穴，这些结构可以保护幼蛛。育雏价值假说预测，这种防御性投资应与育雏价值（例如，卵囊质量和数量）成正比。我们通过实地测量蜘蛛网蜘蛛的隐居结构和与卵囊存在、重量和总粒数相关的母体防御投资，在蜘蛛网蜘蛛 Campanicola Campanulata 中验证了这一假设。正如预测的那样，有卵囊的雌性建造了更大的隐居处，并且投资随着卵囊质量和卵数的增加而增加。这些结果支持了巢穴价值假说，并强调了隐居结构是蜘蛛亲代照料的一个重要但尚未得到充分研究的组成部分。Zhang, H
The CAA urges passengers to ‘pack right for a safe flight’
The UK Civil Aviation Authority (CAA) has launched a new summer awareness campaign to highlight the concerning statistic that over 100 million rechargeable lithium batteries are incorrectly packed on flights. Batteries are most commonly found in laptops, power banks, mobile phones, and electronic ci
