Friday, July 17, 2026

Naked Mole-Rat Queens Prevent Rival Reproduction

Naked mole-rat queens release a special chemical. This chemical stops other females in their group from having babies. A new study tells us how this works. It was published today in the journal Nature.

The study shows that the chemical changes hormones in other female mole-rats. This change stops them from reproducing. A scientist from Canada, Melissa Holmes, says this study is important. It answers the question of why only one female can have babies in a naked mole-rat colony.

Naked mole-rats live in groups. They are unique because their social structure is rare among mammals. The queen has all the babies. Other females help care for the young and find food. All females can become queens, but most cannot because their bodies are not ready.

In the study, scientists found a chemical called isopropyl myristate in queen mole-rats. This chemical was not found in other females. When other females smelled this chemical, it stopped them from reproducing. This shows how the queen keeps her position.

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Vocabulary List:
6 words · tap to reveal
ON

Accent

chemical/ˈkɛmɪkəl/noun
a substance used in science or industry

hormones/ˈhɔrmənz/noun
small natural substances that change body functions

reproducing/ˌriːprəˈduːsɪŋ/verb
having babies or producing young animals

colony/ˈkɑləni/noun
a group of animals or plants living together

social/ˈsoʊʃəl/adjective
relating to how people or animals live together

structure/ˈstrʌktʃər/noun
the way parts are organized or arranged

How much do you know?

What does the chemical released by naked mole-rat queens do?
Stops all males from reproducing
Stops other females from having babies
Increases the size of the colony
Makes the queen stronger
In which journal was the study about naked mole-rats published?
Science
Nature
Journal of Mammalogy
Animal Behavior
Who conducted the study on naked mole-rats?
Melissa Holmes from Canada
John Smith from the USA
Anna Lee from Australia
David Brown from the UK
What is unique about the social structure of naked mole-rats?
They are solitary animals
Only one female reproduces
They form large nomadic groups
Males care for the young
What chemical was found in queen mole-rats?
Isopropyl myristate
Estrogen
Progesterone
Testosterone
What role do other females have in the naked mole-rat colony?
They become queens immediately
They compete with the queen
They help care for the young and find food
They leave the colony
Naked mole-rat queens can reproduce at any time.
All females in a naked mole-rat group can become queens.
The chemical in queen mole-rats was found in other females.
The study confirms that the queen keeps her position through a chemical mechanism.
Naked mole-rats live a solitary lifestyle.
Other females stop reproducing when they smell the queen's chemical.
The chemical released by naked mole-rat queens stops other females from having babies and changes their hormones.
The study reveals why only one female can have babies in a naked mole-rat .
Other females assist in caring for the young and food.
The chemical isopropyl myristate was found in queen mole-rats but in other females.
A scientist named Melissa Holmes states that this study is because it answers important questions.
Naked mole-rat queens maintain their through the release of a special chemical.
This question is required

Test Your Understanding

Start Quiz
Vocabulary List:
6 words · tap to reveal
ON
Accent
chemical/ˈkɛmɪkəl/noun
a substance used in science or industry
hormones/ˈhɔrmənz/noun
small natural substances that change body functions
reproducing/ˌriːprəˈduːsɪŋ/verb
having babies or producing young animals
colony/ˈkɑləni/noun
a group of animals or plants living together
social/ˈsoʊʃəl/adjective
relating to how people or animals live together
structure/ˈstrʌktʃər/noun
the way parts are organized or arranged

How much do you know?

What does the chemical released by naked mole-rat queens do?
Stops all males from reproducing
Stops other females from having babies
Increases the size of the colony
Makes the queen stronger
In which journal was the study about naked mole-rats published?
Science
Nature
Journal of Mammalogy
Animal Behavior
Who conducted the study on naked mole-rats?
Melissa Holmes from Canada
John Smith from the USA
Anna Lee from Australia
David Brown from the UK
What is unique about the social structure of naked mole-rats?
They are solitary animals
Only one female reproduces
They form large nomadic groups
Males care for the young
What chemical was found in queen mole-rats?
Isopropyl myristate
Estrogen
Progesterone
Testosterone
What role do other females have in the naked mole-rat colony?
They become queens immediately
They compete with the queen
They help care for the young and find food
They leave the colony
Naked mole-rat queens can reproduce at any time.
All females in a naked mole-rat group can become queens.
The chemical in queen mole-rats was found in other females.
The study confirms that the queen keeps her position through a chemical mechanism.
Naked mole-rats live a solitary lifestyle.
Other females stop reproducing when they smell the queen's chemical.
The chemical released by naked mole-rat queens stops other females from having babies and changes their hormones.
The study reveals why only one female can have babies in a naked mole-rat .
Other females assist in caring for the young and food.
The chemical isopropyl myristate was found in queen mole-rats but in other females.
A scientist named Melissa Holmes states that this study is because it answers important questions.
Naked mole-rat queens maintain their through the release of a special chemical.
This question is required

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