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pics of mother/infant bonobos supplied by the study authors

Life

Adjusting to a new sibling is highly stressful for bonobo infants

Cortisol levels in bonobo infants jumped fivefold when they got a younger sibling and stayed high for 7 months, suggesting they found it extremely stressful

News

Suckling piglets

Life

Female mammals that suckle another’s young have more offspring

News

Sunray guppy

Life

Guppy fish can see optical illusions - but not in the same way we do

News

rat contemplating time

Life

Rats can track the passage of time and judge their accuracy

News

DJ0W3Y The orangutans are the two exclusively Asian species of extant great apes. Native to Indonesia and Malaysia.

Life

Orangutans can learn how to use stone tools as hammers and knives

News

Raspy cricket

Life

Australian raspy cricket has the strongest bite of 650 insect species

News

Song Sparrow (Melospiza melodia), British Columbia, Canada

Life

Fear of predators means sparrows struggle to raise chicks to adulthood

News

Three chimps

Life

Chimpanzees spotted apparently using insects to treat their wounds

News

Fruit flies

Life

Learning styles in fruit flies may not be related to nature or nurture

News

baboon

Life

Female baboons that had a tough infancy are less sociable as adults

Baboons are sociable primates, but females that had a tough early life – because of the loss of their mother or a lack of food – find socialising harder

News

Life

Giant pandas more likely to reject cubs after artificial insemination

News

Life

Hibernating ground squirrels recycle urine to maintain their muscles

News

Life

Largest ever fish colony hosts 100 billion eggs under Antarctic ice

News

How to alter your personality: why your character isn't fixed in stone

Features