[Typhoid]

Solenodon:

Solenodons have a few intriguing traits, two of them being the position of the teats (2) on the female, almost on the buttocks of the animal, and the second being the venomous saliva that flows from modified salivary glands in the mandible through grooves on the second lower incisors ("solenodon" derives from the Greek "grooved tooth"). Solenodons are among a handful of venomous mammals.

Cuttlefish:

Despite their common name, cuttlefish are not fish but mollusks. Recent studies indicate that cuttlefish are among the most intelligent invertebrates.

The cuttlefish pupil is a smoothly-curving W shape. Although they cannot see color,[6] they can perceive the polarization of light, which enhances their perception of contrast. They have two spots of concentrated sensor cells on their retina (known as fovea), one to look more forward, and one to look more backwards. The lenses, instead of being reshaped as they are in humans, are pulled around by reshaping the entire eye to change focus.

Scientists have speculated that cuttlefish's eyes are fully developed before birth and start observing their surroundings while still in the egg. One team of French researchers has additionally suggested that cuttlefish prefer to hunt the prey they saw before hatching.