There are cases where two different species mate and produce offspring and hybrids are born as a result. For this to happen, several different elements must be compatible between the species, including their mating behavior.
To begin with, they must have a similar number of chromosomes, and the information stored in them must be almost identical. Otherwise, they can not have any viable offspring together. Continue reading to find out more about the hybridization process in different species.
A world of hybridization
Both parents must have similar behaviors in order to reproduce. Will the offspring have stronger traits from one parent than the other?
You need to be aware that there are many behavioral traits inherited from parents to answer this question. In addition, we have acquired behaviors that an individual engages in through learning and observing the social group.
Researchers have worked in their laboratories with animals to study the behavior of hybrids. In fact, some of these animals have even found homes in some zoos. The liger, for example, which is a hybrid of a tiger and a lion. There are also some natural hybrids, including some species.
Hybrids – experimental mice
Researchers use mice in many of their experiments and have already created specific inbred mice. In fact, they choose one type or another depending on the study they are going to conduct.
There is ample evidence of behavioral differences between the many mouse types. This is why the effect of the different pharmacological agents that are tested on them can lead to many different results.
This is because the neuroanatomical development and the physiological characteristics of these mice differ due to genetic reasons.
In one study, the researchers analyzed the behavior of several types of hybrid mice through tests. It was mainly for the classification of emotional behaviors (anxiety, stress and depression), motor performance, spatial learning and memory.
From this study, it can be concluded that some hybrids have a greater tendency to suffer from stress and anxiety. Other types of mice perform poorly with spatial tasks due to vision problems.
In previous studies, researchers had already shown that hybrids had better memory than their parents. This phenomenon is known as hybrid potency or heterosis. It occurs in many animal and plant species, and researchers demonstrated it by crossing pure breeds of poultry and pigs.
A liger is the hybrid offspring of a lion and a tiger
This hybrid is specifically a cross between a lion male ( Panthera leo) and a female tiger ( Panthera tigris ). This is a human creation and the tiger has already existed for hundreds of years.
In terms of animal behavior, lions are mainly diurnal animals and live in large groups while tigers are nocturnal and solitary. The liar’s behavior is more similar to the lion’s. In addition, these animals are mostly sterile, although there are reports of some fertile individuals.
Whether the behavior of a hybrid is more similar to that of one or both parents depends largely on the species that have been crossed and in what environment they grew up.
Parental care (usually from the female in the case of mammals) has a great influence on the behavior of the offspring. Because of this, the behavior of hybrid offspring is more likely to be similar to that of the mother. This is because she is the one who will teach them how to survive.
In general, everything seems to indicate that one of a parent’s parent species will dominate over the other from a behavioral perspective. But when the hybrid is the result of two very similar species, as is the case with, for example, the mulberry, it is difficult to distinguish between the behavior that comes from one or the other.
We hope you enjoyed this article.
This article might interest you…