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Ugly Animals

Biology field guide

Animal feeding tools built for hidden or scarce prey

Feeding structures make sense when the food and habitat are known. A projecting jaw, narrow tongue, suction strike or moving lure solves a particular access problem.

Animals in this guide

8 connected profiles

Aye-aye with large ears and an elongated middle finger

Mammal

Aye-aye

The thin middle finger is not a deformity. It taps wood, reaches into cavities and hooks out insect larvae or soft plant material.

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Goblin shark with a long snout and protruding jaws

Fish

Goblin shark

The long snout carries sensory organs, while the highly protrusible jaws move forward rapidly to capture prey.

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Deep-sea anglerfish with a lure above its mouth

Fish

Deep-sea anglerfish

The lure is a modified dorsal-fin spine. In many deep-sea species its light is produced with help from symbiotic bacteria, but anglerfish biology varies across families.

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Alligator snapping turtle with a ridged shell and hooked jaws

Reptile

Alligator snapping turtle

The pink tongue tip resembles a small worm. A motionless turtle can open its mouth and move the lure to bring curious prey within striking distance.

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Mata mata turtle with a leaf-like head and shell

Reptile

Mata mata turtle

Fringes and ridges blur the turtle's outline. When prey comes close, the mouth opens rapidly and draws in water and the animal together.

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Monkfish with a flattened head and wide mouth

Fish

Monkfish

The first dorsal spine ends in a fleshy lure. Small movements attract attention while mottled skin and fringes conceal the waiting predator.

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Giant anteater with a long tubular snout

Mammal

Giant anteater

Claws break the nest, smell locates the insects and a saliva-coated tongue enters narrow chambers. The long skull is a housing for specialised feeding equipment.

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Common warthog with tusks and facial pads

Mammal

Common warthog

Facial pads cushion the head during clashes. Curved tusks defend, display and help move soil, while the broad snout grazes close to the ground.

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01

How do predators bring prey within reach?

Anglerfish and monkfish use modified fin spines as lures. Alligator snapping turtles move a worm-like tongue tip, while mata mata turtles depend on camouflage and rapid suction.

These animals reduce the need for pursuit. Remaining still can save energy and prevent the predator from revealing itself before the strike.

02

How do animals open protected food?

Aye-ayes gnaw wood and probe cavities with a thin finger. Giant anteaters break insect nests with claws and insert a long tongue. Warthogs use a broad snout and tusks while grazing or moving soil.

The feeding system includes several parts working together. Describing only the most visually unusual structure can hide the role of smell, posture, saliva, teeth or muscle.

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