41. Conservation biology The existence of positive intraspecific O A relationships would exacerbate the risks faced by imperilled species. 42. But misidentifications were still numerous through high levels of intraspecific variability in the shell, radula and male genital system. 43. There was an improvement of cultivars ( intraspecific crosses ) and hybridization with the best varieties of the European vine. 44. Researchers have determined that both species share a similar adult intraspecific variation, meaning that they are not distinct species. 45. Intraspecific cooperative foraging techniques have also been observed, and some propose that these behaviours are transmitted through cultural means.46. The authors explained the thickening as an adaptation for display or to strengthen the skull for intraspecific head-butting. 47. In other words, more interspecific morphological differences are caused by mutations in cis-regulatory regions than intraspecific differences. 48. Several studies have been designed specifically to test whether animals possess theory of mind by using interspecific or intraspecific communication. 49. A dearth of field observations limit our knowledge, but intraspecific conflicts are known to sometimes result in injury or death. 50. Intraspecific brood parasitism is noticed with lower rank females attempting to lay their eggs in the nests of higher ranking females.
