When male-male competition is excluded, a large proportion of females strongly preferred red and yellow males; however, some females showed consistent preferences for parae and blue males as well [ 50].
When presented with choices between two species, seals apparently showed consistent preferences for particular species.
Conversely, males showed consistent preferences for females, suggesting that D. melanogaster males tend to rank different female phenotypes in the same order in terms of attractiveness.
Presented with different numbers of live shrimp, the cuttlefish showed consistent preference for the larger quantities, suggesting they had "number sense".
They do not show a consistent preference for coding or non-coding regions or aggregate in any coding frame, implying a role in DNA structure and as polypeptide binding sites.
Calculations at T = 1273 K again showed a consistent preference of Pt for the Ni sublattice in Al-rich, Ni-rich and stoichiometric B2 NiAl.
Despite these miniscule variations, the flies showed a consistent preference for one arm of the maze over the other, the team reports online today in the Proceedings of the National Academy of Sciences, suggesting that the flies could tell the difference between the odorants.
In fact, the Obama administration has shown a consistent preference for conservative policy proposals -- ones that don't throw the baby out with the bathwater but rather leave already existing structures in place, but reform them subtly.
In contrast, when the delay to reinforcement was equivalent (stage 2), all groups showed a consistent preference for the higher reward.
Such results should make us wary of ascribing innate response preferences to certain brain regions that show consistent "category-specific" response preferences in most individuals, in that these may simply be the result of experience and task demands.
