Carnivorous Sponges — So That's a Thing

Sponges are generally known as gentle filter feeders, but some, like those in the cladorhizidae family, are carnivorous. These sponges have evolved unique adaptations to capture and digest small animals, such as developing plant-like shapes and using spicules to catch prey. They utilize migrating cells to digest their food, a process that can take several days. These adaptations are likely due to their habitats in nutrient-poor environments, leading to over 175 species of carnivorous sponges. This highlights the surprising complexity and adaptability of sponges.

What is the primary difference between typical sponges and those in the family Cladorhizidae?

• Cladorhizidae sponges have more vibrant colors.

• Cladorhizidae sponges are larger in size.

• Cladorhizidae sponges are carnivorous.

• Cladorhizidae sponges live in freshwater.

How do carnivorous sponges capture their prey?

• By creating a vacuum.

• By using a sticky substance.

• By trapping them in bubbles.

• By using spicules to hook onto prey.

What unique ability do carnivorous sponges have to aid in digestion?

• They can dissolve prey with acid.

• They have a central stomach like mammals.

• They use migrating cells as mobile stomachs.

• They can produce heat to cook their prey.

Why might carnivorous sponges have evolved in nutrient-poor waters?

• To take advantage of abundant plant life.

• To adapt to the lack of nutrients available for filter feeding.

• To reduce competition for food.

• To avoid predators.

Approximately how many species of carnivorous sponges have been identified?

• Over 500

• Less than 50

• About 100

• More than 175