Giant anteaters' home ranges vary in size depending on the location.
At Serra da Canastra National Park in Brazil, female anteaters have home ranges around 3.67 km² (910 acres), while males live in home ranges of 2.74 km² (680 acres).
In other parts of Brazil, anteaters may have 9 km² (2,200 acres) ranges.
Anteaters from Venezuela have been recorded living in home ranges as large as 25 km² (6,200 acres).
Individuals mostly live alone, except for females that nurse their young and males courting females.
Anteaters communicate their presence, status, and sexual condition with secretions from their anal glands.
They also advertise their presence to other individuals though tree markings and urine.
They appear to be able to recognize each other's saliva by scent.

Females appear to be more tolerant of females than males are of males, leading to greater overlap in female home ranges.
Males are more likely to engage in agonistic behaviors, such as slowly circling each other, chasing, or actual fighting.
Circling anteaters may cry a drawn-out "harrr".
In combat, they slash at each other with their claws and wrestle each other to the ground.
Fighting anteaters may emit roars or bellows.
Males are possibly territorial.
Giant anteaters' home ranges vary in size depending on the location. At Serra da Canastra National Park in Brazil, female anteaters have home ranges around 3.67 km² (910 acres), while males live in home ranges of 2.74 km² (680 acres). In other parts of Brazil, anteaters may have 9 km² (2,200 acres) ranges. Anteaters from Venezuela have been recorded living in home ranges as large as 25 km² (6,200 acres). Individuals mostly live alone, except for females that nurse their young and males courting females. Anteaters communicate their presence, status, and sexual condition with secretions from their anal glands. They also advertise their presence to other individuals though tree markings and urine. They appear to be able to recognize each other's saliva by scent.
Females appear to be more tolerant of females than males are of males, leading to greater overlap in female home ranges. Males are more likely to engage in agonistic behaviors, such as slowly circling each other, chasing, or actual fighting. Circling anteaters may cry a drawn-out "harrr". In combat, they slash at each other with their claws and wrestle each other to the ground. Fighting anteaters may emit roars or bellows. Males are possibly territorial.
Giant anteater