Animal life is believed to actually have begun on land, with some animals later moving into the water. Simple animals are known to have developed as early as 2 billion years ago, with gradually more complex organisms appearing, until a very short and huge expansion of life. This is thought to have happened around 550 to 530 million years ago, in what is called the Cambrian explosion.
Plant life is understood to have originated in the water, and then either moved onto land or some combination of movement with preexisting land growth. Evidence for plantlife on land is varied, some being as old as 1.2 billion years although the majority of the oldest remains are 450 million years old.
Early animals likely evolved to move onto land to seek new resources and avoid predators. The changing environment, such as shrinking water sources and increasing competition for food, may have also played a role in driving animals to adapt and colonize new habitats on land. Additionally, the ability to exploit new niches and evolve adaptations for terrestrial life, such as lungs for breathing air, likely contributed to the transition.
Sloths move slowly and clumsily when on the ground, using a unique sideways method of crawling. They are adapted for life in trees, where they move more easily using their long claws to grip onto branches and their strong limbs to pull themselves along. Sloths are most comfortable and agile when in their natural habitat of trees.
The first land animals, believed to be tetrapods (four-limbed vertebrates), appeared around 360 million years ago during the Devonian period. These early tetrapods evolved from lobe-finned fish and are thought to have first ventured onto land for reasons such as access to new food sources or to escape predators.
A leech moves by extending and contracting its body in a wave-like motion, using its suckers to grip onto surfaces. On land, a leech can use its muscular body to inch forward and navigate uneven terrain by contracting and stretching its body segments. They move slowly and rely on moisture to prevent dehydration.
Some shark species can swim close to shore in shallow waters, but they generally do not come onto land. Sharks rely on water to breathe and move, so they are not adapted to survive out of the water for extended periods of time.
Lungs and limbs.
Native AMericans had to leave their home land and move onto reservations and compleatly change their way of life.
because of there culture
so the colonists wouldn't move west onto Indian land
Light energy to photosynthesize made it beneficial for aquatic plants to move onto land. Terrestrial environments allowed the plants to be able to absorb more sunlight in contrast to living beneath the surface of water.
it sops eating energy drinks and chocolate bars
Super typhoons can move onto land, but they won't be super typhoons for very long after that.
A major trait that allowed plants to move onto and adapt to dry land was the development of a waxy cuticle on their leaves and stems. This cuticle helps prevent water loss and desiccation, allowing plants to thrive in terrestrial environments.
The sea turtle only really comes onto dry land to lay it's eggs. But, to move it uses it's flippers to push it's self across the sand to find a suitable nesting spot.
Plants moved onto land after algae was entrapped in evaporating ponds, and cast up to the sea shore, and as a majority died, a few survived to be the plants we see on land today.
He had a very vacuous way of life; one moment he would do one thing the next he would move onto the other without finishing the first.
What do you mean? - Master Talia 04:18/08/08/2008 (PST)