Using the readings, describe some situations in which sex ratios are in fact male (or female) biased. According to Fisher's model, what led to the bias in these cases?

Readings: 1. Herre, E. A. (1987). Optimality, plasticity and selective regime in fig wasp sex ratios. Nature, 329 (6140), 627-629.

2. Trivers, R. & Hare, H. (1976). Haploidality and the evolution of the social insects. Science, New Series, 191 (4224), 249-263.

3. Fisher's principle (Wikipdedia). https://en.wikipedia.org/wiki/Fisher\%27s\ _principle