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Nature Nivel B2

Mother there is only one even for wild chimpanzees and getting over their loss also takes years

EFE / Madrid / A long-term study, published in the journal eLife, shows that the loss of the mother is stressful for wild immature chimpanzees that are orphans, but only during the first two years.
The research is led by the Max Planck Institute for Evolutionary Anthropology in Leipzig and the Institute of Cognitive Sciences of the National Center for Scientific Research in Lyon; For 19 years, scientists investigated the short- and long-term effects of mother loss on the stress of orphaned wild chimpanzees.

The death of the mother is a traumatic event. Orphaned mammals are known to die earlier and have fewer offspring compared to non-orphans, but how these losses occur is still debated.

Clinical studies in humans and animals in captivity show that individuals whose mothers die when they are young are exposed to chronic stress throughout their lives.

However, this chronic stress, which has harmful consequences for health, can be reduced or even eliminated if orphans – in the case of humans – are placed in foster families young enough.

Conclusions
Now this work shows that wild immature orphaned chimps are highly stressed, especially when orphaned at a young age.

However, orphans who lost their mother later or as adults were no more stressed than other individuals whose mother was still alive.

“Our findings contrast with human studies and show that young orphaned chimpanzees recover over time from the initial loss of their mother, which is very stressful,” argues Roman Wittig, director of the Taï Chimpanzee Project.

These chimpanzees often care for or adopt orphans, can carry them, share their food and nest at night or protect them from aggression, according to Witting, who nevertheless points out that it remains to be seen whether orphaned chimps recover from stress thanks to the support offered by other chimpanzees.

“The stress that orphaned chimpanzees experience compared to non-orphans does not directly explain their shorter lifespan and fewer offspring, but it may have an effect on other important factors such as growth during critical periods of development,” he explains by her part Catherine Crockford.

The next step is to figure out what it is that mothers provide their young that helps them get ahead of orphaned chimps. It may be that the mother’s presence represents a nutritional gain or a social advantage, such as cushioning the aggressions of others, or a mixture of both, according to Crockford. (June 19, 2021, EFE / PracticaEspañol)

(Automatic translation by Google)

 

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Question 1
El texto trata...
A
cómo evitar que los chimpancés estén estresados.
B
de cómo afecta a los chimpancés la pérdida de sus madres.
C
del número de chimpancés que se han quedado huérfanos en los últimos años.
Question 2
En el texto se dice que...
A
los chimpancés que pierden a sus madres a una temprana edad están más estresados.
B
los chimpancés salvajes adultos sufren más por la pérdida de su madre que los chimpancés más jóvenes.
C
se desmiente que la pérdida de la madre pueda afectar de algún modo al chimpancé que se queda huérfano.
Question 3
Según el texto...
A
hasta ahora, ningún chimpancé ha ayudado a otro que quedó huérfano.
B
el estrés crónico que sufren esos chimpancés puede reducirse si están en una familia de acogida.
C
se desmiente que los chimpancés que se quedan huérfanos puedan algún día recuperarse de esa pérdida.
Question 4
Leyendo el texto entendemos que...  
A
hay chimpancés que "adoptan" a los que se han quedado huérfanos.
B
los científicos aseguran que los chimpancés que perdieron a sus madres viven más que el resto.
C
se desmiente que los chimpancés huérfanos tengan menos crías que aquellos que no se quedaron huérfanos.
Question 5
En el vídeo se dice "medio centenar de chimpancés". Otra forma de expresarlo es...      
A
"100 chimpancés".
B
"50 chimpancés".
C
"Más de 100 chimpancés".
Question 6
En el vídeo se dice "_______  no _________  visitas __________".        
A
aquí, hay, publicas
B
aquí, hay, públicas
C
aquí, ahí, publicas
Question 7
Literalmente, en el vídeo se dice...    
A
"ese santuario de un millón de metros cuadrado".
B
"ese santuario de medio millón de metros cuadrados".
C
"ese santuario de un millón y medio de metros cuadrados".
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