"In 1960 there were 65,000 black rhinos. Today there are fewer than 3,000,
is the strapline for the latest fundraising campaign by Save the Rhino.
Save the Rhino is the UK's leading rhino conservation charity, which is dedicated to protecting rhinos in the wild and safeguarding their environments.
The charity has got together with Howletts and Port Lympne Wild Animal Parks in Kent to host The Rhino Cycle event on 6 July in a bid to raise £50,000.
A4 posters will be sent out on 22 April to advertise the event, as part of a 50,000 direct mail pack, of which 20,000 will go out to existing members.
A further 10,000 packs will be sent to supporters of the two parks, with the remaining 20,000 targeting cycle shops, gyms including Holmes Place, scout groups and various chambers of commerce.
It will also be promoted through Hoverspeed and the National Union of Students.
Save the Rhino is offering two cycling challenges: an 18-mile family cycle ride from Howletts to Port Lympne to recruit more than 500 riders, and a 70 mile bike ride from London's Greenwich Park to Port Lympne.
At least 200 participants, who have to raise a minimum of £250 in sponsorship and pay a £25 registration fee, are needed to provide funding for various Save the Rhino projects in Africa and help build new shelters for 22 black rhinos at Port Lympne.