Mice that experience stress such as a food shortage will sometimes abandon their young. Explain how this behavior might have evolved in the context of reproductive trade-offs and life history.

K-selected reproductive strategies are favoured when adult survival is high, and populations are close to their carrying capacities. Explain the role of allocation in the evolution of such strategies in guppies

Lower birth rates and declining family size in recent years reflect what pheno

In a population of birds, males have long red tail feathers that they use in mating displays, and also sing in the mornings to attract females. You find that some males have more red feathers in their tails than others, while some sing for longer periods of time. In this bird species, a high proportion of eggs fail to hatch. You measure the number of eggs that successfully hatch that are fathered by each male bird, and find that the number of successful hatchlings is proportional to how long a male sings, but is unrelated to the amount of red in his tail. Question: Propose an explanation for why males evolved both to sing and to have red tails, and how females likely evolved in response to both traits. [Note:  avoid writing a paragraph for each sentence prompt; this should still be short, concise answers and Please write four sentences guided by the individual prompts] Your answer:   Sentence 1: State which males and which females had the highest fitness.   Sentence 2: What feature…