Derek Ratcliffe Derek Ratcliffe owns and operates two businesses in the organic food industry. At Home Organic Farms (www.ahof.ca) is a design-build firm that specializes in vegetable gardens and Organics Live (www.organ

Source URL: www.tofoodanddrinkmarket.com

Patuxent Research Notes DDE and birds of prey The year was 1967 and Derek Ratcliffe, a British biologist, was plotting data points on his graph. He was investigating why there

Source URL: www.pwrc.usgs.gov

• Environment
• DDT
• Malaria
• Peregrine Falcon
• Dichlorodiphenyldichloroethylene
• Derek Ratcliffe
• Eggshell
• Bird of prey
• Falcon
• Biology
• Zoology
• Falconry