How does gravity affect animal size?

Gravity has had an effect on the development of animal life since the first single-celled organism. The size of single biological cells is inversely proportional to the strength of the gravitational field exerted on the cell. Gravity is thus a limiting factor in the growth of individual cells.

How did animals adapt to gravity?

Summarized, animals did not only acquire systems to cope with gravity during evolution (comp. 20.1), but they also evolved receptors (and respective brain parts) in order to use gravity as the only virtually constant environmental factor for orientation, maintenance of equilibrium and postural control.

How did gravity affect dinosaurs?

Stephen Hurrell presented scientific evidence that dinosaurs lived in a reduced gravity and this allowed them to grow to gigantic proportions. The Reduced Gravity Earth theory explains why all land-based life has shifted towards a larger scale on the ancient Earth. This includes gigantic dinosaurs, plants and insects.

Does gravity affect size?

The greater the size of the masses, the greater the size of the gravitational force (also called the gravity force). The gravitational force weakens rapidly with increasing distance between masses. The weight force on an object tells us the size of the gravity force from Earth acting on the object.

Does gravity affect growth?

Plants respond directly to Earth’s gravitational attraction, and also to light. Stems grow upward, or away from the center of Earth, and towards light. Plants’ growth response to gravity is known as gravitropism; the growth response to light is phototropism.

How does gravity affect evolution?

These studies suggest that changes in orientation of a species with respect to the direction of a gravitational force, without an alteration in the magnitude of gravity, may play a role in the evolution of that species on Earth. Gravity may determine the location and size of internal organs such as the heart.

How does gravity affect root growth?

Plants’ growth response to gravity is known as gravitropism; the growth response to light is phototropism. As a result, root cells on the upper side of the root grow longer, turning the roots downward into soil and away from the light. Roots also will change direction when they encounter a dense object, such as a rock.

How does gravity affect the size of life on Earth?

All land-based life is limited in size by gravity due to the scale effect. This is a relatively simple concept: consider two animals of exactly the same shape, with one animal twice as large as the other, both in the same gravity as indicated below.

Did dinosaurs live in a reduced gravity?

This web site is an additional resource to my book, Dinosaurs and the Expanding Earth, detailing the evidence that dinosaurs lived in a reduced gravity and its close relationship to Earth expansion. It is well-known that gravity limits the form and size of life.

How does the upper size limit affect life on Earth?

This upper size limit affects all land life, including land animals, flying animals, plants and insects. This upper limit on the scale of present day life is the reason why it is so surprising that dinosaurs were gigantic.

What if Supersaurus had twice the gravity of Earth?

The second problem is that, to double Earth’s gravity between Supersaurus and today, Earth would have had 1.4 times the diameter in the Jurassic. While that doesn’t sound like much, it translates to twice the surface area and nearly three times the volume of modern Earth. That’s a much bigger planet!