This blog may help people explore some of the 'hidden' issues involved in certain media treatments of environmental and scientific issues. Using personal digital images, it's also intended to emphasise seasonal (and other) changes in natural history of the Swansea (South Wales) area. The material should help participants in field-based modules and people generally interested in the natural world. The views are wholly those of the author.
Saturday, 17 May 2014
Friday, 16 May 2014
Don't Get Your Octopus in a Twist
The octopus is certainly amongst the most intelligent of invertebrates but its 8 arms have an apparently simple way of controlling the suckers. Hochner et al at the Hebrew University of Jerusalem have discovered that a substance in the skin prevents the suckers fixing on another part of the animal's own body (including another tentacle). These molluscs will sometimes treat amputed arms (that can be regrown) as food but are less likely to gobble one of their own severed limbs unless the skin is removed. It appears that a chemical (or chemicals?) in the skin prevents activation of the suckers (it must be an individual characteristic).
Snail Wars
With slightly contorted logic, some gardeners apparently hurl snails, threatening their prize blooms, into their neighbour's garden (rather than kill them). New research from Queen Mary University and Exeter (http://www.theguardian.com/environment/2014/may/16/snails-homing-instinct-overcome-move-20-metres-away) suggests, however, that you need to throw the errant molluscs more than 20 metres if you don't want core members of the local garden population to return (homing snails?). Gardeners will have to tone up those muscles (or use a catapult)!
Thursday, 15 May 2014
Seeing the Changes 864
Between Loughor and Penclacwydd, noted a Common blue damselfly (Enallagma cyathigerum) as well as blooming Elder (Sambucus nigra), Rough poppy (Papaver hybridum), Columbine (Aquilegia vulgaris), Hemlock water dropwort (Oenantha crocata) with insect visitors, Annual nettle (Urtica urens) and Pencilled cranesbill (Geranium versicolor).
Sunday, 11 May 2014
A Really Useful Hedgehog?
There are reports of 2 Israeli entrepreneurs developing a $7 device called keepod (Hebrew for 'hedgehog'). The item is essentially a USB flashdrive that essentially provides 'an operating system on a stick' (http://www.bbc.co.uk/news/technology-27346567). This would enable folks in 'poor' parts of the world (the device is being trialled in Kenya) to fruitfully use even 'tired', old computers without having to pay for expensive upgrades. The information for the individual user would be stored on their own keepod device. The $7 price includes about $2 profit that can be ploughed back into development and rolling out the device more widely. The item sounds almost as useful as the original beast (I love 'em because they chomp the slugs).
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I n the UK and US, a pparently popular and successful vegan/vegetarian restaurants are reportedly closing or adding meat to their menus ( ...
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Early ripening fruit may seem convenient but some folk think it confirms environmental stress. There's also a possibility th...


