presence of objects around them.

In experiments, Dr Burt de Perera found that the fish did more than merely avoid bumping into objects in their tank. They built a detailed map of their surroundings, memorising the obstacles in them within a few hours. Once stored in their brains, the fish used their "mental map" to spot changes in the obstacles around them - a feat that defeats hamsters.

In one test, involving obstacles arranged in a specific order, the fish proved capable of memorising the order and quickly spotted when Dr. Burt de Perera swapped obstacles around.

According to Dr Burt de Perera, the findings - which appear in the current issue of the Proceedings of the Royal Society - show that fish are under-estimated.

"The public perception of them is thatAn overview of ethnicity and assessment of family history in primary care settings.
To discuss the importance of and the nurse practitioner's (NP's) role in the assessment of ethnicity/family of origin in conducting a multigenerational family history in primary care settings. A review of the literature on past research results addressing racial and ethnic disparities and current articles from scientific journals exploring the relationship between race and genetics. Web sites were from the National Institutes of Health, the Human Genome Research Institute, the National Cancer Institute, and the Health and Human Services Minority Health and Disparities report. The family history has received renewed interest due to the sequencing of the human genome. A multigenerational family history is an important first step in screening for a multitude of disorders impacted