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Archive for the ‘Natural behaviour’ Category

Playing tag across the species

Most of us remember playing games of ‘It’ or ‘Tag’ when we were children (or indeed a bit older!) and now researchers at Portsmouth University have spotted gorillas playing the same game.
gorilla
They will hit their playmate and then run away – with others sometimes joining in and the roles reversing, just like our familiar game. Although we can’t be sure that they are playing tag in the way that we may understand it, there are certainly strong similarities.

Marina Davila Ross, one of the researchers who studied the gorillas, believes that playing tag gives the gorillas a chance to work out how best to relate to others in social situations. For example, if they just tapped another gorilla they might not run away at all; but if they hit a bit harder they would run away. This suggests that the gorillas were learning where the boundaries of acceptable behaviour were – an important skill when you have to get along with each other!

So just as with human children, it may be that games like this teach gorillas important social lessons for their adult life. Not to mention having fun.

Source:

Van Leeuwen, E., Zimmermann, E. and Davila Ross, M. (2010) Responding to inequities: gorillas try to maintain their competitive advantage during play fights, Biology Letters.

Snowball fights and hot tubs!

Macaque. Getty.

Armed with a snowball

For our special Christmas day post, we found a rather lovely fact about Japanese Macaque monkeys….

Young Macaques have been seen to make and throw snowballs, just like people do! Scientists could find no reason why they would do this, other than simply because it is fun!

Not only that, but back in the 1960s, these Japanese Macaques saw their human counterparts bathing in hot springs, and must have decided that this was a great idea. In the freezing temperatures they endure, a hot tub seems to be a relaxing and enjoyable social occasion.

Just another little similarity between different species – it seems many like to have fun, whether we have fur, feathers or plain old human clothes…

Wishing you a Compassionate Christmas!

Sources:

Uhlenbrook, C. (2008) Animal life the definitive visual guide to animals and their behaviour, Dorling Kindersley, London.
Primate Info Net (2009) [accessed 24 December 09)
BBC Worldwide, Monkeys Relaxing

Learning the language

If by the word ‘language’ we mean a system of communication, animals have different languages of their own. Hens and chickens have over 30 different calls, which they use to alert their group to food or danger, for example.  Chicks start communicating with their mother hen while they are still in the egg and cockerels have a special food call to let the hens know that food has been found. Hens make a gentle crowing sound when they are happy.

Socialising in the village square. (c) Compassion in World Farming/Chi Keung Wong

Socialising in the village square. (c) Compassion in World Farming/Chi Keung Wong

Pigs are very chatty, communicating with grunts, squeals, snarls and snorts, champing their jaws and clacking their teeth. Sows have a special call for their piglets when it’s time for the piglets to suckle. Sows and piglets keep contact with each other and with their mother by squeals and grunts. If piglets are separated from Mum, they squeal for her. Scientists found that sows responded more strongly to the desperate squeals from cold, hungry piglets than they did  to calls from larger, more well-fed piglets.

Animals can also understand each other’s language. For example, some animals can understand the meaning of another’s alarm call.

Dogs and humans have a long history of living together. While dogs are often quick are picking up what humans are saying – perhaps by the tone of voice rather than by all the actual words – we humans often seem to struggle to understand dog ‘bark language.’ In this really interesting video, courtesy of the social networking site Petstreet ,  dog communication expert John Rogerson helps us decipher what our furry friends are wanting to tell us.

The language of hens

The hens and chickens that we farm are descended from the jungle fowl of south-east Asia. Jungle fowl and domestic chickens make over 30 different calls, which they use to alert their group members to a threat or to food, for example.  Chicks start communicating with their mother hen while they are still in the egg and cockerels make a “food call” to let the hens know that food has been found.

Cockerels tell the hens in their group about tasty food. Image: Compassion/Xiao Shibai

Cockerels tell the hens in their group about tasty food. Image: Compassion/Xiao Shibai

Scientists used to think that only a few mammal species could really understand the meaning of different calls and grunts. Now, research is showing that hens and chickens have a more advanced use and understanding of language than scientists expected. 

Recordings of cockerels’ food calls were played back to hens, either straight after they had received three corn kernels to eat, or after they had not received anything to eat. 

In response to these recorded calls, the hens only went to look for food if they had not eaten any corn. The hens who weren’t hungry ignored the calls! They didn’t just go and search for the food as an automatic response to the call.

This shows that they understood that what the call meant and could make an intelligent response to it.

Other researchers found that hens were prepared to wait longer before eating a tasty treat, if  they knew that waiting for longer would mean they received a bigger number of tasty treats.

Hens and chickens are no ‘bird brains’!

The Inner World of Farm Animals – Book review

The Inner World of Farm Animals: Their Amazing Social, Emotional and Intellectual Capacities

This beautiful book by Amy Hatkoff fully lives up to its title. At first glance it may seem like a neat coffee table book, as it contains quality photos of farm animals accompanied by heart-warming stories about individual farm animals who have displayed a wide array of clever or generous actions. Presumably, if one pig can show presence of mind in a human crisis then the presumption would be that other pigs would have this capacity too. (In this case the pig brought passers-by to the help of her owner who was indoors having a heart attack.)

Amy Hatkoff  has backed up these stories with short passages based on the work of leading animal welfare scientists such as Professors Marian Dawkins and Mike Mendl, showing the unexpected intelligence of farm animals, such as long-term recognition of missing comrades, delight upon discovering a new technique, and ability to operate a computer game.

Compassion in World Farming highly recommends this book. It would make a lovely gift for a forthcoming birthday or seasonal celebration. We can guarantee that any animal-loving friend will delight in this book. We can nearly guarantee that the sceptic will have their eyes opened! Amy Hatkoff has done the animals a real service.

A Hatkoff. The Inner World of Farm AnimalsThe Inner World of Farm Animals: Their Amazing Social, Emotional and Intellectual Capacities
By Amy Hatkoff
Published by Stewart, Tabori and Chang (New York), 2009
UK Distributors: ABRAMS/STC Tel: 0207 713 2066
£10.99 (UK), $19.95 (US)

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