After some search on the Internet, found the original source of the photo: it is a $385 item “Set of 31 Claws in Riker Box” on Bone Clones, Inc. website.
“A beautiful set of 31 Bone Clones® replica claws and talons, and savings when purchased as a set. Perfect for comparative studies and display. Set includes all of the claws and talons in our bird, cat, bear, and canid claws or talon sets, plus several others – 31 in all:”
“The great horned owl, golden eagle, bald eagle, red-tailed hawk, raven, peregrine falcon, barn owl and harpy eagle (also available as a set of bird talons), African lion, lynx, bobcat, cougar, Russian lynx, cheetah dewclaw, African leopard, cheetah front claw, Siberian tiger and jaguar (also available as a set of cat claws), grizzly, polar, black and sloth (also available as a set of bear claws), wolf, fox, raccoon and coyote (also available as a set of canid claws) and
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Harpy eagle’s feet and claws are the strongest amongst the birds
It seems the longest claw in the animal kingdom belongs to Grizzly bear (or Kodiak bear? Kodiak bear claws are not in the collection, but since Kodiak bears are larger than Grizzly bears, I would not surprised if their claws also bigger). Harpy eagle comes a close second after these brown bears. Its feet and claws are also the strongest of any bird.
Related: Top 15 Largest Birds in the World
The harpy eagle (Harpia harpyja) is also called the American harpy eagle to distinguish it from the Papuan eagle, which is sometimes known as the New Guinea harpy eagle or Papuan harpy eagle. It is the largest and most powerful raptor found in the rainforest, and among the largest extant species of eagles in the world. It usually inhabits tropical lowland rainforests in the upper (emergent) canopy layer.
Destruction of its natural habitat has caused it to vanish from many parts of its former range, and it is nearly extirpated in Central America.
In Brazil, the harpy eagle is also known as royal-hawk (in Portuguese: gavião-real).
Golden eagle’s claws are also spectacular. is one of the best-known birds of prey in the Northern Hemisphere. It is the most widely distributed species of eagle. These birds are dark brown, with lighter golden-brown plumage on their napes. Immature eagles of this species typically have white on the tail and often have white markings on the wings.
Golden eagles use their agility and speed combined with powerful feet and massive, sharp talons to snatch up a variety of prey, mainly hares, rabbits, marmots, and other ground squirrels.
Tiger vs lion
Tiger is the biggest living cat on Earth, but I am still surprised how big its claws compared to that of the African lion’s.
A tiger’s paws are powerful enough to smash the skulls of domestic cattle and break the backs of sloth bears. With these claws, it’s no surprise that the tiger can take down these large animals easily.
Brown bears (Kodiak bear and Grizzly bear)
Brown bears have non-retractable claws that may be as long as four inches (10 cm). They use their claws to defend themselves and fight with other bears, but Kodiak bears primarily use their claws to dig for roots and other food and to grip food. Even though their claws look large and clumsy to us, they are actually quite dexterous and capable of manipulating small objects.
Related: 20 Amazing Grizzly Bear Facts