It depends what size the pods are. And I assume you meant there is "something alive inside" of EACH pod. If they are the size of chicken eggs, then it's most likely a clutch of alligator eggs. They dig a hole near water and lay their eggs in it, then bury them.
it might be spider eggs
The homophone for "put in the ground" is "plant." Both words sound the same but have different meanings, with "plant" referring to placing something in the ground with the intention of growing it.
It depends on how you would like your watermellon to be after it is done growing.
By growing peanuts in your ground.
Grass
Thyme can be identified by its small, narrow leaves that are green or grayish-green in color. It also has tiny, tubular-shaped flowers that can be pink, purple, or white. In a garden, thyme is usually planted in rows or clusters, while in the wild it can be found growing low to the ground in rocky or sandy areas.
its their way of growing
Something which is perpendicular is at right angles an example would be that a tree growing straight out of the ground would be perpendicular to the ground. Things are parallel when they run along side each other always the same distance apart, an example would be railway tracks.
Grounding was an issue in many Jeep Wranglers, check the ground connections behind the gauge clusters first.
Cantaloupe develope on a ground-growing vine. Because it grows on the ground, it cannot "fall" for it is already on the ground. Complete folklore.
Bugle weed is a low-growing perennial plant with clusters of blue, purple, pink, or white spike-shaped flowers. Its leaves are typically dark green, glossy, and lance-shaped, forming a dense mat along the ground. Bugle weed can spread quickly through runners and thrives in moist, shady conditions.
Something is shorted to ground.