(1) But to the ethologist, every species is fascinating - the end-point of millions of years of complex evolutionary pressures.

(2) It is only when intrusive ethologists steal and hatch eggs that the wide tolerance of the goslings is revealed.

(3) This set of preoccupations led the ethologists to assume a more complex and extensive set of genetic endowments underlying behaviour.

(4) Some ethologists favour a purely quantitative approach, while others prefer a more subjective treatment.

(5) Ethologist Sankey of the University of Rennes and her colleagues studied 20 Anglo-Arabian and three French Saddlebred horses stabled in Chamberet, France.

(6) The view that co-operation, not competition, is more conducive for survival is also gaining ground among biologists and ethologists.

(7) It includes innate male aggression and, as recognised by some ethologists, an emphasis on instinctive territoriality.

(8) "For a dog, understanding pointing is a natural thing to do, " says Friederike Range, a cognitive ethologist at the University of Vienna and the lead author of the new study.

(9) The groundbreaking study in this area was conducted by the human ethologist Irenaus Eibi - Eibsfeldt.

(10) "That is a clear difference between dogs and wolves, " says Marc Bekoff, a cognitive ethologist at the University of Colorado, Boulder.