The animal may be in pain.
An animal with a keen sense of smell, long claws, and sharp teeth.
Rhino
The animal with a long snout known for its keen sense of smell and powerful digging abilities is the mole.
The star-nosed mole
Roy was very keen for apples today.
He just does, he has animal-keen senses which make him very attuned to his surroundings.
Owl
The kea is a type of parrot native to New Zealand. It is known for its intelligence and curiosity, often displaying problem-solving skills and resourcefulness. The kea is the world's only alpine parrot and is known for its playful and mischievous nature.
hard out Blake
As keen as mustard or as keen as a kitten
A person can find information on the habitat for marsupials online, often on specialist animal charity websites which are keen to inform the public of the animals they protect. Alternatively, visiting a zoo or animal sanctuary where marsupials are kept would provide some information and staff would be able to discuss habitats in detail.
Keen as a been makes more sense. Who the heck would say keen as a lemon? One must consider the relative intelligences of the vegetable matter. Is a bean, in fact, more keen than a lemon? Could lemons not be a misunderstood fruit, perhaps with unrecognized wit and wisdom? Is someone less keen just because they are sour and yellow? Perhaps we should reconsider the traditional simile.