Question

Почему у видов животных, заботящихся о потомстве, число потомков уменьшается? приведите пример.

Answer 1

Например вот возьмем семейство кошачьих. Мать кошка, недавно родившая нескольких котят, первые 3-4 дня заботится о них и ухаживает за ними. Если она видит что, последний родившийся котенок очень слабый и не может дальше развиваться как его более активные братья и сестры, то мать съедает своего потомка. так и сокращается количество потомков.

Answer 2

Why does the number of offspring decrease in species that care for their young? Can you provide an example?

In species that care for their young, the number of offspring tends to decrease due to various factors. One of the main reasons is the investment of time, energy, and resources required to care for each offspring. By allocating more resources to a smaller number of offspring, parents can increase the chances of their survival and overall reproductive success. Here's an example to illustrate this:

Example: Birds

Birds are a good example of species that care for their young. Many bird species invest a significant amount of time and energy in raising their offspring. They build nests, incubate eggs, and provide food and protection to their chicks until they are capable of fending for themselves.

One reason why the number of offspring is often smaller in bird species is the high level of parental investment required. Birds need to gather food, protect the nest from predators, and provide constant care to their chicks. This level of care is resource-intensive and limits the number of offspring that can be successfully raised.

Additionally, birds often have limited access to resources such as food and nesting sites. Competition for these resources can be intense, and having fewer offspring allows parents to allocate more resources to each individual, increasing their chances of survival and successful reproduction.

In summary, the number of offspring tends to decrease in species that care for their young due to the high level of parental investment required and the limited availability of resources. By having fewer offspring, parents can allocate more resources to each individual, increasing their chances of survival and reproductive success.