Non-human birth is determined when malefics are potent and benefics weak in hermaphrodite signs. The exact species corresponds to the Moon's Dwadasamsha.
Verse 2 — Sign Indicators for Trees, Plants, and Creepers
Roots, branches, flowers, and fruits of vegetation are deduced from the zodiacal signs by the wise; a fixed sign indicates a stately long-lived tree, while a movable sign indicates tender greens, annual crops, or creepers.
Verse 3 — Signs and Planets Indicating Animals of Land, Sky, and Water
When malefic planets occupy quadruped signs, the birth of quadrupeds (cattle, horses, wild beasts) takes place; when occupying winged signs, birds are born; and in aquatic signs, creatures of water come forth.