Whales being sociable animals probably need the stimulus of sizeable gatherings to induce reproductives behavior.
鲸作为社会性动物，可能需要大规模聚集的刺激来诱导繁殖行为。
2
The frequencies of appearance and numbers of reproductives from the different initial colonies and their capacity to start egg-laying were also observed.
此外，还对分离群体产生补充生殖蚁的频率、数量及初期产卵能力进行了观察。
3
This would allow for the evolution of divergent life lengths and reproductive value curves between workers and reproductives. Predators fitting this description would include snakes.