Bloodless Creatures: Animals that don't have blood
Sea Cucumbers
They are peculiar creatures found in marine environments, belonging to the phylum Echinodermata. These fascinating animals lack a traditional circulatory system which aids as a locomotion aparatus and a respiratory exchange mechanism
Sponges
Sponges are deep sea creatures and simple multicellular organisms who represent another group of animals that lack a conventional circulatory system. Instead of blood vessels, sponges possess a specialized network of water channels
Jellyfish
This oceanic creature exhibit a unique adaptation to survive without blood. Instead of a circulatory system, jellyfish possess gastrovascular cavities that play a crucial role in nutrient distribution
Flatworms
Also known as planarians, flatworms demonstrate an innovative method of nutrient exchange. These animals posses a highly branched digestive cavity that as a distribution network for nutrients
Sea Anemones
Relatives of jellyfish and corals, the sea anemones are fascinating marine animals who possess gastrovascular cavities that facilitate both digestion and circulation
Roundworms
Also known as nematodes, roundworms are an incredibly common parasite, living on other animal species of all kinds as well as in food, soil, vinegar, malt and deep within the earth.
Starfish
Starfish have some of the strangest anatomies in the animal kingdom. Not only do they not have blood, but they also don’t have a brain or heart. Most of their organs are on the outside of their body.
Mollusks
Mollusks are a common sight both in and out of the water, including animals such as snails, slugs, oysters, mussels, cockles, and scallops. But you might not know that these creatures are completely bloodless