The lunging tentafeeder has replaced from its ancestor, doubling in size, and growing longer tentacles. Their name comes from their newly evolved ability to retract its tentacles, and then throw them out quickly to smother large groups of prey. They have also now become completely rooted to their burrows during their adult stage. The larval stage has two small legs which hook into the ground when its burrow is found. After this, growth of the organism simply absorbs the limbs as it fills the burrow. The larval stage, as a result, is twice as small, and has much shorter tentacles. They now shoot their eggs out of a small tube below the mouth. The eggs are picked up by ocean currents and usually hatch a few hours after emerging from the parent.