Terrifying Birth You Haven't Seen Before
Starfish: The Arm-Scattering Creatures
In this video, we learn about the amazing ability of starfish to regenerate their bodies from tiny pieces and how they can grow an entirely new starfish from just one piece of a torn arm. We also explore the reasons why starfish throw their arms around and scatter them.
Regeneration Ability
- Starfish can restore their body from a tiny piece as long as there's a fragment of the central disc intact.
- Tropical starfish species can grow an entirely new starfish from just one piece of a torn arm.
- Each arm contains copies of vital organs and is equipped with eye spots that help starfish differentiate between light and darkness.
- Even a small fragment of an arm has tube feet which help the starfish move.
Asexual Reproduction
- Starfish could scatter their arms for asexual reproduction.
- Some species actually reproduce like this, where you cast off your arm, and your offspring grows out of it.
- It's important that the torn arm doesn't get eaten by a predator.
Sexual Reproduction
- Starfish reproduce by spawning, where reproductive cells end up in the water and are fertilized somewhere outside the body.
- This gave birth to a theory saying that starfish cast off their arms to increase the scatter range of the eggs and get better chances of them being fertilized.
- It's believed that starfish that reproduce sexually age more slowly than those that use conventional sexual reproduction without tearing off their arms.
Larvae Development
- Starfish larvae don't look like their parents at all; they look like some kind of microorganism covered with cilia.
- Cilia helps different single-celled creatures move; larvae generate vortices of water around them which helps them move and also bring nutrient microorganisms closer to their mouths.
Temperature Regulation
- Some starfish tear off their arms when dealing with an excessively warm environment.
- Starfish are considered cold-blooded animals, and there's an internal temperature limit for them (95 degrees Fahrenheit).
- The temperature of the central disk and its arms can differ by several degrees; this suggests that this is the way starfish dissipate heat keeping it away from the vital area.
Arm Detachment
- Some species of starfish can tear off their arms at the point where they feel threatened.
- As soon as the temperature in the arms exceeds a dangerous mark, the arms shrink and detach.
- Arms are easy to grow back.
Starfish Superpowers
The video discusses the unique abilities of starfish, including their regeneration capabilities and predatory behavior. It also explores the impact of an invasive species of starfish on coral reefs and how technology is being used to combat it.
Starfish Regeneration
- Starfish can regenerate lost body parts.
- When infected with a virus, starfish may discard body parts in hopes that they will grow back stronger and better equipped to deal with the virus.
- The ability to regenerate can be both helpful and harmful, as an invasive species of starfish has caused damage to coral reefs by overpopulating due to their advanced regeneration capabilities.
Invasive Species
- The crown of thorn starfish is an invasive species that feeds on shellfish and has caused damage to coral reefs in the Western Pacific.
- Fishermen attempted to kill the starfish by cutting them into pieces, but this only increased their population.
- The overpopulation of crown of thorn starfish has led to a decline in coral cover in areas such as the Great Barrier Reef.
Technology Solution
- Scientists have developed an autonomous robot called "hot spot" that uses cameras, thrusters, GPS, and a pneumatic arm to identify and kill crown of thorn starfish.
- Divers can deal with any missed starfish later, resulting in fewer overall deaths.
Predatory Behavior
- Starfish are predators that can turn their stomachs inside out to eat prey such as mussels and clams.
- Starfish have light-sensitive spots on the tips of their arms that allow them to recognize their environment, but they do not have eyes in the traditional sense.
- Starfish also have armor for protection.
Overall, starfish possess unique abilities such as regeneration and predatory behavior. However, an invasive species of starfish has caused damage to coral reefs, leading scientists to develop technology solutions such as autonomous robots.
Starfish and SpongeBob: The Truth
This video reveals some surprising facts about starfish, including their ability to regenerate limbs and their aversion to being studied. It also debunks the idea that Patrick and SpongeBob would be friends in real life.
Starfish Regeneration
- Starfish can regenerate lost limbs, even if they lose all five of them.
- Some species of starfish can even regenerate an entire body from just one severed limb.
Starfish Defense Mechanisms
- When threatened, some species of starfish can shed their arms as a defense mechanism.
- Other species of starfish have spines or toxins to deter predators.
Studying Starfish
- Biology students attempted to implant small chips into starfish for research purposes, but the starfish simply forced the tags out without any harm to themselves.
- Scientists have a solution to this problem, but it is not discussed in this video.
SpongeBob and Patrick's Friendship
- A photo featuring a yellow sea sponge resting next to a five-pointed starfish went viral on the internet, but in reality these creatures are far from being friends.
- This species of starfish has been observed feeding on sponges.