this post was submitted on 18 Aug 2024
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The UK’s largest breed of spiders, which can grow to the size of rats and hunts fish, are making a comeback in Britain.

From near-extinction in 2010 - when only a handful remained as their wetland homes were destroyed by humans - the number of fen raft spiders are now steadily increasing thanks to recent conservation efforts.

The spiders are set to have their best year on record at nature reserves ran by RSBP.

The conservation charity revealed that the most recent survey estimates the total number of female spiders to be up to 3,750 across 12 sites in Norfolk and Suffolk Broads alone.

The spider can spin a web as large as 25cm and can grow to the size of a man’s hand.

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[–] tal@lemmy.today 9 points 3 months ago* (last edited 3 months ago)

https://en.wikipedia.org/wiki/Great_raft_spider

In October 2010 the first introduction of a great raft spider population into a new site in the UK was carried out in a joint project by Natural England and Suffolk Wildlife Trust and supported by a grant from the BBC Wildlife Fund. The project saw around 3000 spiderlings bred and reared by Dr. Helen Smith and the John Innes Centre, 1600 of which were released into suitable dykes at the Suffolk Wildlife Trust Castle Marshes nature reserve. The site is part of the Suffolk Broads and lies 50 kilometres (31 mi) downstream, from Redgrave and Lopham fen, between Lowestoft and Beccles. Work was carried out to improve the ditch network at the site to prepare for the reintroduction and provide optimal habitat for the new spider population.

Dr. Helen Smith knew that the one great problem with the UK was an insufficient number of giant spiders running around, and she intended to remedy that.

Each spiderling was hand reared in separate test tubes and fed with fruit flies.

"Eat. Eat and grow large and strong."