The Missing (BBC1) | iPlayer Intruders (BBC2) | iPlayer Baby P: The Untold Story (BBC1) | iPlayer Vanishingly rare in real life, vanishing children are almost a commonplace in fiction.
This abolishes the blood-peritoneal fluid barrier and permits the entry of immunocompetent cells and facilitates diffusion of larger molecules as immunoglobins, which is an efficient defence mechanism to intruders [1, 2].
They are also the main hunters in the group and actively defend the territory from intruders [16], [30].
The California mouse is unique because males and females aggressively defend joint territories against same sex intruders [17].
While introduction of newly-mated queen intruders into queenright monogyne colony residents resulted in immediate investigation and eventual alarm and attack, queenless workers often aggregated around and walked over intruders [6].
Although no similar studies have been performed in bank voles, the observations of SEOV in rats could indicate that fighting results in more efficient viral transmission in males than in females, who generally direct their aggression toward female intruders (14).
Each trial started by placing an A. astorquii model approximately 40 cm from the centre of the focal territory, which is at, or slightly below, an average distance territory holders swim when deterring territorial intruders [ 22, 27, 39].
(c) Individuals aggressively defend their territory against unfamiliar intraspecific intruders [ 27, 35], interspecific intruders and predators [ 32, 35], which has been shown to have positive fitness effects [ 35].
It might constitute a role model organism, to identify how macrophage defends itself against intruders [ 19, 20].
In X. germanus, a single foundress female excavates the brood chamber herself and blocks the entrance tunnel against any intruders [ 31, 42].
The interaction between phagocyte and ligand at the site of infection leads to a sequential event known as oxidative burst to kill the microbial intruders [ 10, 11].
