My friend, tutor and mentor, Colin Williams, who has died aged 75, was an academic with a special focus on how politics and policies can shape the future of the world’s languages.As a Welshman he had a particular interest in the Welsh language, but his comparative work also took him well beyond his
温度对暗纹蝎（蝎子目：Hadruridae）防御和捕食行为的影响摘要蝎子利用其螫刺机制进行防御和捕食，并且是变温动物，温度影响其生理和行为。因此，我们假设温度既影响蝎子的防御性刺痛和捕获猎物的行为。我们在沙漠毛蝎（Hadrurus obscurus Williams，1970）中测试了体温对这些行为的影响。在第一个实验中，蝎子被放置在高温（26-28°C）或低温（21-22°C）的温控室中，并进行探测以引发防御性螫刺。我们记录了反应时间和引起刺痛所需的探针数量。在第二个实验中，我们观察并记录了三种不同温度（21、29和33°C）下的猎物捕获行为。体温较高的蝎子有更快的防御反应时间，并且需要更少
